Which of the following is an example of a reserved power?

a. granting professional licenses
b. creating the post offices
c. establishing an air force
d. borrowing money

a. granting professional licenses

Explanation:

The 10th amendment of the United States Constitution grants the states all powers that were not granted to the federal government (enumerated and implied powers) as part of the states' sovereignty, freedom, and independence, therefor, a reserved power is a power that belongs to the state as part of their local government and not to the federal government, an example of a reserved power is granting individual, professional and business licenses.