I believe the answer to your question will be that it responds appropriately to the stress.
The second answer. He was looking for a quick fix.
I believe the answer is a.
Social interactions with peers can promote moral development because as peers interact with each other, they experience opportunities to develop perspective-taking skills and practice conflict resolution. The ability to take another’s perspective helps to establish a sense of morality because seeing a situation from a different point of view often assists in establishing empathetic and caring behaviors toward others.
Tropism is the growth response of a plant caused by a stimulus.gravitropism is the growth response of a plant to gravity.the roots grow downward towards gravity.which is called positive gravitropism.the stem and upper part of a plant grow upward,away from gravity,which is called negative gravitropism