Terminal Drop Is the Name Given to

Terminal drop is the name given to

A) a low score on an IQ test brought about by the child not feeling well on the day of the test.
B) a rapid decline in the mental abilities of elderly people a few years prior to dying.
C) placing an underachieving child in a special education class.
D) a gifted student dropping out of high school and remaining underemployed during his or her adult life.