Q - Which of the following do not show optical activity?
A - (R)-2-Butanol
B - (S)-2-Butanol
C - A solution containing 1M (R)-2-butanol and 2M (S)-2-butanol
D - A solution containing 2M (R)-2-butanol and 2M (S)-2-butanol
A solution with equal amounts of both optical enantiomers does not show optical activity.