Answer:
Biological
Explanation:
Major depressive disorder may be defined as a type of mood disorder in which the individual suffers from the long and intense feeling of sadness. This is also known as clinical depression.
The major depressive disorder can be run in the family as well. The biological factor plays an important role in these disorder. The factors like age, sex and other genetic factors are might responsible for the development of the condition of major depressive disorder.
Thus, the answer is biological.
A) The National Institute of Mental Health Website
D prevents pooling of Blood
