The first code written for an event should be ____ code.

The main body of a particle system is sometimes referred to as a particle emitter

Indicate whether the statement is true or false

Which of the following is not a rule that must be followed when naming identifiers?

a. The first character must be one of the letters a-z, A-Z, and underscore or a dollar sign. b. Identifiers can contain spaces. c. Uppercase and lowercase characters are distinct. d. After the first character, you may use the letters a-z, A-Z, the underscore, a dollar sign, or digits 0-9.