In a Study Discussed in the Text, Students Were Paid

In a study discussed in the text, students were paid either $20 or $1 for telling collaborative subjects that a dull task was actually interesting. Which group showed greater attitude change in actually rating the task as interesting?

A) the group that told the lie for $1
B) the group that told the lie for $20
C) the group that refused to tell the lie for $1
D) the group that refused to tell the lie for $20