How was your day?

My life for the past and next few days will revolve around solving problems like this:

 Spoiler

Although it's only one of five other subsections

I'm gonna scream if I have to look at any more Bio, G-Chem, and O-Chem. So, taking a break to practice this subsection of my exam (which I'm happy with. Scored a 14/15 on that particular sub-section. Too bad I suck at the other 5 subsections right now.)

I'm actually starting to miss Maple a bit. I'm also getting huge cabin fever just sitting at my desk and studying or eating lunch while watching TV/anime so I've been frequenting the library.

I spotted a book by Franz Kafka I want to read. Especially Metamorphosis.

If anyone's curious how the pineapple to solve that problem:

 Spoiler

The End view is the view you see eye-level and the right side of the 3D figure.
Dashed lines means they're not visible in that perspective. Solid lines means it is.
Solid lines could either mean an edge of the shape or (if you're in the top view) a level difference such as sloping downward at a 45 degree angle.

Basically, if a figure has 3 edges in one perspective, it also has to have 3 edges in the unknown perspective (since it wouldn't make sense not to).

Likewise, vertical edges in the top view means vertical edges in the front view.
Horizontal edges in the front view will mean horizontal edges in the end view.
Horizontal edges in the top view will mean vertical edges in the end view.

Top view: 8 vertical edges, 3 horizontal edges
Front view: 8 vertical edges, 6 horizontal edges

Choice A: 3 vertical edges, 6 horizontal edges
Choice B: 4 vertical edges, 6 horizontal edges
Choice C: 4 vertical edges, 3 horizontal edges
Choice D: 3 vertical edges, 5 horizontal edges

Couple more details that help with solving it:
The two dashed lines in the top view is telling you something is hidden and going all the way through from front to back so something's got to be hidden in the end perspective too.
In the front view, the left half of the front view is taller than the right half so there's going to be a slope difference if you look at it from the top (so solid lines).
In the front view, a part of the figure on the floor is elevating the rest of the figure towards the sky. But since you're looking at the end view from the right side, the part that's helping to elevate it will be hidden from view so there's definitely got to be a dashed line towards the bottom in the end view.
In the front and top view together, the left half of the figure is sticking out closer to you than the right half is.

Choice C and D don't have that dashed line in the bottom of the figure so they're eliminated.

Choice B has something sticking out front and center but Choice A doesn't...
Neither the front or top view (especially the top view) don't say something's gonna be sticking out from the largest base of the figure so B is out.
And it's wrong because if anything was sticking out (a.k.a. the left half of the figure), it should be touching the floor, not floating.

Choice A's top dashed line checks out. It's the third vertical line in the front view. The half solid, half dashed line is the upside down U part on the left half of the figure. Since it's partially sticking out but the top view tells you it goes all the way from front to back, only half will be visible from the end view. The dashed meant it's hitting the back of the figure.
The full solid line at the bottom is coming from that weird < shaped indentation.


Or you could line count, but it doesn't always work so picking out the details tells everything.