Which example seems most like a formal discussion? a debate between students about a topic from history a chat among a group of friends about their favorite music a phone call between students about their weekend plans a conversation between a mother and son about his grades a debate between students about a topic from history

a debate between students about a topic from history

Explanation:

Conversations of Mothers about grades are hardly formal talk, same goes to weekend plans. Chatting already implies that this is not a formal conversation.

This all is quite different than two students discussing about a period in history, a historical character, or something similar. In this case, the discussion is academic and most likely to be formal than the other situations.

i just need the points

explanation:

the first forms of writing came from them in the form of pictographs around 3100 bc.