The main character in a story is called the

protagonist

Explanation:

Protagonist:  The main character of the story. This is the character who experiences the main conflict and has to solve it.  It is the character driving the story.  The character can be good or evil.

the answer:

in the first part of the story running is all that matters to squeaky. running gives her confidence and defines who she is. at the beginning of the story she says that other kids call her mercury because she runs very fast. in the text she refers to herself as "miss quicksilver".

the line that provides the best evidence that squeaky has self-confidence is

" and i continue with my breathing exercise, strolling down broadway toward the ice cream man on 145th with not a care in the world cause i am miss quicksilver herself".

what are the following?