The answer is Nemo. Nemo was the one that got mad in that chapter, and the answer is verified.
It is Sam Border if you didn't know. To know what a main character is it is the character who is talked about throughout the whole book and/or is on the cover on the book. It is a strategy to know the main character(s) of the book. I hope this helps.
<span> A. California has three of the top ten most populated cities in the United States
this contains an adverb clause
so correct option is A
hope it helps</span>