Answer:
Option C. 72°
Step-by-step explanation:
Area inscribed in a regular pentagon ABCD can be divided in five triangles.
Every triangle form an equal angle at the center of this polygon.
So every angle at origin ∠BOA = [tex]\frac{360}{5}=72[/tex]
Now we can see that to rotate this pentagon in a way that A replaces B, angle of rotation will be 72° anticlockwise.
Option C. 72° is the correct option.
