Which statement is the converse of the following conditional?
If a polygon has three sides, then it is a triangle.
OA. If a polygon does not have three sides, then it is not a triangle.
O B. If a polygon is not a triangle, then it does not have three sides.
OC. If a polygon is a triangle, then it does not have three sides.
OD. If a polygon is a triangle, then it has three sides.