John Calvin applied his learning and understanding of the law to his Christian writings. In what way did Calvin’s Institutes of the Christian Religion differ from the teachings of Luther? Select one:
a. it did not attack the Catholic church
b. it did not differ from the teachings of Luther
c. it presented new keys to understanding Christianity
d. it was written so the common man could understand it

c.it presented new keys to understanding Christianity

Explanation:

Calvin’s Institutes of the Christian Religion differ from the teachings of Luther because "it presented new keys to understanding Christianity."

This is evident in the fact that unlike Luther and most Christian doctrine at the time who believed in acquiring salvation through faith, John Calvin concluded that salvation is a matter of predestination and it's designed for some people only.

Hence, in this case, the correct answer is option C "it presented new keys to understanding Christianity."

the answer is c. they believed the royal family should hold all the power.