its from the top view, so I'd so that it isn't too fat but it does look kind of off. In answers like these where it doesn't seem 'accurate' id compare it to the other options available to get a better idea of the shape. For example, Answer B would be too fat in comparison to E. This makes E seem more accurate
in answer C the slope on the thinner leg is incorrect. In the original diagram you can notice that the lines of the leg are parallel to each other, in answer C it is not.
Yeah I agree, it doesn't look fat. Just imagine if you're looking at your smartphone from an angle, the screen is not gonna look too fat. But as soon as you view it from the top side the screen looks a lot wider.