Consider the apparatus below at a constant temperature. The two flasks have equal volumes. At the start, here are two different gas molecules (shown in green and blue) in the left flask. The right flask is a vacuum and the valve is closed. When the valve is opened, four possible arrangements of the molecules are shown (A-D). What is (or are) the most probable arrangement(s) of the two gas molecules in the apparatus after the valve is opened? only C only B only D A and D B and C only A none of the answers are correct