An inborn behaviour that enables a human to cope with its environment is called as

The correct option is D Instinct
There are certain characters of features which are present in the individual from birth. The humans have the capacity to behave and cope with the different situations in the environment. This is known as instinct behavior. The common example is the holding or grasping of the object which is placed in the hand of an infant.

Thus, the correct answer is option D.