What nonprinting character or characters appear when you type many spaces in a row? a. the bullet-like symbols that represent spaces b. an arrow-like symbol that represents a tab c. a paragraph symbol d. the arrow-like symbols that represent tabs

The answer is A) the bullet-like symbols that represent spaces

By default, several different characters like a space and a tab are never displayed on the screen. Word refers to these special characters as nonprinting characters and can be displayed by displaying the word options dialog box and then choose display at the left side.
Spaces are represented by bullet like symbols and tabs are represented by an arrow like symbol.

I'm thinking it's the egg beater.