Question

If behavior a brings about a desirable consequence b, and behavior a reoccurs, then consequence b can be considered _____.

Answer 1

If behavior A brings about a desirable consequence B, and behavior A reoccurs, then consequence B can be considered a reinforcer. 
A reinforcer is a consequence that will increase a behavior, while a punisher is a consequence that may decrease a behavior.

Answer 2

Consequence B can be considered a reinforcer if Behavior A brings about a desirable Consequence B, and Behavior A reoccurs. A reinforcer is a consequence that will increase a behavior, while a punisher is a consequence that may decrease a behavior.