The principles of roman catholicism require followers to do all of the following except: a. recognize the pope's authority. b. worship the holy trinity. c. perform 11 sacraments. d. attend mass weekly.

The principles of Roman Catholicism require followers to recognize the Pope's authority, worship the Holy Trinity, and to attend mass weekly. The only principle that Roman Catholics are not required to do is to perform the 11 sacraments.

The answer would be letter C.