In operant conditioning, positive reinforcers the rate of responding and negative reinforcers the rate of responding

Operant conditioning is a form of learning in which the behavior is said to be influenced by its consequences.A reinforcer is an event that increases the frequency of the behavior that it follows. In operant conditioning, positive reinforcers increase the rate of responding and negative reinforcers increase the rate of responding

the answer to this question is d

  b.

there are isolated pockets of farming, generally around rivers and oases, which are used for irrigation.