What this symbol means? can you give me a definition of this symbol?

Why does the host answer the guest with brief responses during the party?

To choose a good persuasive essay topic,begin with a big idea,narrow it down,and a.then narrow it down more; it is impossible to have a topic that is too narrow. b.do some research to see what you should write about c.specify-ask a question you want answered in your argument

Someone get back to me , i really don’t get this