According to the DSM-5, If Feelings of Worthlessness, Self-Loathing, and the Inability

According to the DSM-5, if feelings of worthlessness, self-loathing, and the inability to anticipate happiness occur after the death of a loved one , major depressive disorder is suspected. The reason for this is that:

A) feeling a sense of loss and deep sadness is a characteristic of major depressive disorder.
B) most people feel terrible sadness for at least a year after the loss of a loved one.
C) bereavement is like any other psychosocial event that might trigger a depressive episode.
D) grieving people attempt to keep busy even though their heart is not in it.