When urie is out with his friends, he smokes cigarettes because they all smoke cigarettes and regularly offer him one. even though he does not like smoking and would prefer not to smoke, urie wants to be like the others in his group so he'll be accepted. urie's behavior is most likely being affected by

    Conformity

Explanation:  Conformity is a form of social influence where, because of some expectations of the group, as in this case, or because of the expectations of the wider community, there is occurrence of changes in beliefs, opinions and behaviour, in order to fit into the group or social norms. This change in behaviour and beliefs occurs as a reaction to real group pressure, as is the case here, due to the group's influence on Urie to smoke, meaning the real, physical presence of those who influence such behaviour change. It can also be a reaction to pressure created on the basis of social norms, which means that there is no real, physical influence of group members, but an imagined pressure of social norms.

a is the answer because it just is