For how many of the following types of quadrilaterals does there exist a point in the plane of the quadrilateral that is equidistant from all four vertices of the quadrilateral?

a square

a rectangle that is not a square

a rhombus that is not a square

a parallelogram that is not a rectangle or a rhombus

an isosceles trapezoid that is not a parallelogram
Answer Choices
A. 1
B. 2
C. 3
D. 4
E. 5