What information should be repeated in the header?
a. the page number
b. your last name
c. your last name and the page number
d. the title of your paper and your last name

It depends on what guidelines you are following but in MLA format it is C your last name and the page number

Hope that helps

Write your broad topic in the center of a piece of paper and circle it.

Explanation:

A cluster map (sometimes also called mind map) is a map that involves recording ideas and then grouping them into clusters. The first step in the creation of a cluster map is writing down the main, broad topic in the center of the paper. The following steps are:

Adding subtopics that are related to the main idea.Adding ideas or information under each subtopic to form clusters. Here as many subtopics as necessary can be created.Marking the diagram with certain colors to understand it more easily later.