Why does Kingston decide she has to list all of "true" things to her mother?

4friends evenly divided up a nn-slice pizza. one of the friends, harris, ate 11 fewer slice than he received.

Something you may do if the weather's nice on sunday. -something you might not want to do this evening. -something you could go on aaturday evening. -something you could wear to a party. -somebody you might see in the next couple of days. -a subject you could study at college or university. -somewhere you might go on holiday .

What is the main idea of this paragraph? asap