What area of public policy lies exclusively with the federal government?
a. welfare policy
b. criminal policy
c. foreign policy
d. education policy

The correct answer is option (a) foreign policy

Explanation:

Foreign policy refers to,the foreign relations policy, which comprises of self-strategies of interest decided by the state to protect its national interests and to achieve it's objective within international relations. the approaches are tactically used to make internal relationship with other countries.

It can also be referred to as the relationship and activities of one state interactions with another states.