Atuition difference between in-state and out of state students is an example of
a. full faith and credit is extended across students.
b. how states make exceptions to the privileges and immunities clause
c. dual federalism
d. federal exceptions to the full faith and credit provision

b. How states make exceptions to the privileges and immunities clause.

Explanation:

The privileges and immunities clause points out that a state can't treat people from other states in a discriminatory way. People from one state should have the same privileges in the other ones. So, tuition difference between in-state and out of state students contradicts this.

answer; construals;