Two Identical Containers, a and B, Hold Equal Amounts of the Same

Multiple Choice

Two identical containers, A and B, hold equal amounts of the same ideal gas at the same Po, Vo and To. The pressure of A then decreases by a half while its volume doubles; the pressure of B doubles while its volume decreases by a half. Which statement correctly describes the temperatures of the gases after the changes?

A) TA = 0.5TB = To.
B) TB = 0.5TA = To.
C) TB = TA = To.
D) TA = 2TB = To.
E) TB = 2TA = To.