During the Progressive Era, one goal of state-level political reformers was to - A prevent party leaders from amending campaign platforms
B increase the influence of business owners on regulatory legislation
C promote the principle of direct democracy
D limit the use of judicial review by circuit courts

Its C

Explanation:

Im also looking this up for my class all the information is saying it's C.

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

d) the constitution rights of native americans and their right to self-government on reservations