Research Suggests That an Attitudinal Shift as a Result of Cognitive

Research suggests that an attitudinal shift as a result of cognitive dissonance is much more likely to occur when the counter-attitudinal behaviour is conducted in front of others. This finding supports which of the following statements?

A) People are more concerned with appearing consistent in their attitudes in the eyes of others than they are with actually being consistent.
B) People are concerned with holding attitudes that are consistent with their behaviour.
C) People are never concerned with holding attitudes that are consistent with their behaviour.
D) Attitudes often do not match behaviour.