Select the correct answer.
Which statement is always true?

A cross section parallel to the base of a right rectangular prism is a square.
B. cross section perpendicular to the base of a right rectangular prism is congruent to the base.
C. cross section parallel to the base of a right rectangular prism is congruent to the base.
D. cross section perpendicular to the base of a right rectangular prism has the same dimensions as the base.