Final answer:
The correct answer is Loneliness.
Step-by-step explanation:
The correct answer is B. Loneliness. Loneliness refers to an individual's emotional and cognitive reaction to having fewer or less satisfying relationships than desired. It is a subjective feeling and can lead to feelings of sadness, isolation, and social disconnection. Loneliness can have negative effects on mental and physical health, highlighting the importance of maintaining social relationships.