Why does the united states have only two major parties? a. the constitution prohibits minor parties. b. the first-past-the-post electoral system. c. state laws forbid minor parties. d. two parties represent all the choices voters need

The correct answer is B) the first-past-the-post electoral system.

The United States has only two major parties because of the first-past-the-post electoral system.

In the first-past-the-post electoral system, citizens vote on a ballot for their preferred candidate. At the end of the day, the candidate that receive more votes wins. Countries such as the United States and the United Kingdom has this system.

The two main political parties in the United States are the Republican Party and the Democratic Party. They have shared power in recent years. It is very difficult for a third party to participate and expect its candidate to win because they lack the proper fund to run a full campaign nationwide with the proper team to compete with the Republican and Democratic parties.  

freedom of speech is also protected by the 1 amendment.

explanation:

here is pretty much what the 1st amendment says:

congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the government for a redress of grievances.

small european communities with shared traditions consolidated into large new states (apex)