Answer: Henry is an example of the Asch effect.
Explanation: The Asch effect is a social experiment created by Solomon Asch, in the 1950's.
He created it to test whether pressure from the majority of a group, had impact to cause an individual to conform from their beliefs (in this case its, Henry).
He came to the conclusion that the individual conforms as a need to fit in with the group and also the fact that, he thinks that the group is more informed that him.