Answer:
He pairs the students of the same age and she thinks this is demeaning.
Explanation:
Frustration:
Frustration is a common feeling related to the opposition by someone who results in anger, disappointment, etc. Frustration has occurred when there is some barrier that occurred between the achieving of the goals of a person. Frustration occurred in two ways internal as well as external.
Internal frustration:
It occurs when individuals are not achieving or fulfill their personal goals, desires, and needs.
External frustration:
It occurs when an individual does not fulfill their goals due to outside barriers such as railroad blockage, physical inability, perception of wasting of the time.