Research on the Relationship Between Morning and Evening People and Stereotype

Research on the relationship between morning and evening people and stereotype use shows that

A) morning people are more likely to use stereotypes in the morning.
B) evening people are more likely to use stereotypes in the morning.
C) morning and evening people are equally likely to use stereotypes in the morning if they have had a good night's sleep.
D) stereotype use does not depend on people's circadian rhythms.