One of christianity's main beliefs is that: a. people shouldn't waste their time with holiday celebrations
b.

A is not true, I would say a strong belief of ours is that Jesus is the son of God and was risen from the dead. Another one is that you need to repent from your sins to get into heaven.

Explanation:

the answer is

peasants’ war, (1524–25) peasant uprising in germany inspired by changes brought by the reformation, peasants in western and southern germany invoked   divine law to demand agrarian rights and freedom from oppression by nobles and landlords. as the uprising spread, some peasant groups organized armies. although the revolt was supported huldrych zwingli and thomas müntzerits condemnation by martain luther contributed to its defeat, principally by the army of the swabian league. some 100,000 peasants were killed. reprisals and increased restrictions discouraged further attempts to improve the peasants’ plight.

i think it would be " a" i might be wrong tho