According to Research by Herman Et Al

According to research by Herman et al. (2003) , what is the effect on eating of an audience?

A) when people eat in a group, they tend to eat more
B) when in the presence of a model who eats a lot, they eat more
C) when in the presence of someone who they believe is evaluating them, they eat less
D) when in the presence of a model who eats less, they also eat less
E) all of the above