David is a sixty-year-old man. He suffers from joint pains and often falls sick. As a result, he finds it difficult to sleep. He, however, tries hard to go to sleep, which creates autonomic activity and muscle tension. In this scenario, David is most likely suffering from
A) narcolepsy
B) sleep apnea
C) insomnia
D) sleep terrors
E) Select

The correct option is C) Insomnia

Explanation:

Insomnia can be described as a condition in which a person has trouble in going to sleep. The person might have small sleep sessions and will often see himself wide awake even in the middle of nights. The person will have difficulty in sleeping even though he might be trying hard to sleep. Hence, the correct option is C.

Other options  like option A, is not correct because narcolepsy is a condition in which excessive sleep is recognized in a person.

answer; implicit memories explicit;