The correct answer is D. Grief. The correct spelling is grief.
Mischeif is a noun that means "mischief." Belief is a noun that means "a state of mind in which one accepts something as true." Thief is a noun that means "a person who steals." Grief is a noun that means "deep sorrow, especially caused by the death of someone close."
The word grief is spelled incorrectly in the question. The correct spelling is grief.
