Nathanial Drummond has three different insurance policies. He has been injured in an accident and has incurred $30,000 in medical bills. There is a clause in all of his insurance contracts the makes sure that he receives no more than $30,000 in payments from his insurance companies. This clause is called:

A. deductible.

B. coinsurance.

C. coordination of benefits.

D. major medical expense insurance.
Its not C