Jeff and Rob have a difficult time getting along at work. Most days, Jeff spends a lot of time cracking jokes and goofing off, while Rob constantly nags him and tells him to act like a grown up. On days when Jeff is more reserved, Rob does not nag him, hoping that this will result in improved behavior down the road. This is an example of which form of behavior modification?A. Empowerment. B. Extinction. C. Punishment. D. Avoidance learning. E. Positive reinforcement.

D.

Explanation:

In this scenario when Rob stops nagging Jeff he is implementing the behavior modification known as avoidance learning. This technique theorizes that and individual tends to remove themselves from a scenario in order to avoid certain bad or stress inducing situation. Which Rob does in order to avoid having to deal with Jeff being cracking jokes and goofing off later.

the first successful, urban blues recording, selling more than 75,000 copies, was made in year 1920.

mamie smith recorded the first commercially successful example of the urban blues,   with the recording of “crazy blues”."crazy blues" was recorded on august 10, 1920, in new york city. within a month of the release of “crazy blues” it had sold 75,000 copies.