Hi First, it would be helpful to make the images a little bigger.
It it hard to see them.
In Image#1, The circular cylinder extends beyond the 2 triangular shapes.
In A, we don't see a cylinder extending beyond...we see flat both sides..so NO.
In B, same explanation.
In C, the structure is straight, not leaning....so NO.
In D, a cylinder is extending beyond the triangular shape seen in Side view...and the structure is straight...Possible answer.
The ridge of the triangles seen from Side view form the Top and Base of the larger rectangular shape, while the cylinder seen in side view forms the smaller square attached to it.
In E, same as explanation in A.
ANSWER: CHOICE D.
In Front view, we see that there is a "dash line" in the middle, suggesting that a line is hidden from Front View, but is in the back of the structure. So we look for a line in Top view, that is in the back of the structure.
ONLY CHOICE C has that middle line in the back of the structure.