Tom and his teammate are given the task of working on an important presentation. tom does not contribute much because he is sure that his teammates can handle the presentation by themselves. this is an example of

a. social loafing
b. a self-serving bias
c. reciprocal altruism
d. cognitive dissonance

This is an example of a. social loafing.

Explanation:

Social loafing is a term used in social psychology to describe a phenomenon that takes place when individuals working is group exert less effort than they would if working on their own. Groups are, sometimes, less efficient and less productive because of this phenomenon. Some people tend to think their effort is not necessary since others will be working hard. They do not feel responsible for how productive their actions will be any longer. That is precisely the case with Tom. The reason why he does not contribute is because he is certain that the others can handle it all by themselves.

c. reserves power to the states and people