Imagine That You Are Drawing a Side View of a Jamb

Imagine that you are drawing a side view of a jamb nut with a template. What is the correct way to draw the bottom of the nut?

A) locate the center of the outline of the top of the nut, draw two 45° lines down to the bottom corners, then connect the points
B) reverse the template used for the top of the nut and trace it
C) draw a straight line across the bottom of the outline drawn for the top of the nut
D) draw a curved line across the bottom of the outline drawn for the top of the nut