A cross section of a right pyramid is shown below.
A quadrilateral Q-R-S-T has sides Q-R on the right face of the pyramid and side S-T on the left face of the pyramid.
Quadrilateral QRST is not parallel to the base of the pyramid. Which of the following can be the shape of QRST?
A.
A right trapezoid Q-R-S-T
B.
A parallelogram Q-R-S-T
C.
A rectangle Q-R-S-T
D.
An isosceles trapezoid Q-R-S-T