What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

the simple fact of the matter is that there is strength in numbers.

 The more that you divide based on your beliefs the weaker that you are.

A great example would be the election of 1844, when Henry Clay (remember him- he is one of the most important people to know in US history) ran against James K. Polk for the presidency.

Polk barely won, mostly because he managed to get NY's electoral votes. He won by about 5k votes. The liberty party, which was closer in political views to Clay's Whig party than to Polk's democrat party, got about 15k votes. If they had not run their candidate there is a good chance that Henry Clay would have been president, and while he was not exactly aligned with their views, he was still closer than Polk.

Essentially, people would rather have someone that they agree with on most issues than someone that they disagree with on most issues, so they are willing to compromise and thus the USA has the two party system.

Hope this helps

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