The answer is C. feelings of grief over his daughter’s death.
Explanation:
Mr. Norton's heart attack is caused by feelings of pain caused by the death of his daughter. Immediately after the death of a relative, the probability of having a heart attack is 21 times higher than normal. With the passing of the days this risk decreases, but even so, over a week it remains multiplied by six.
i think it would be ther first one, idk for sure becasue i have never took this class but from what i do know the first one seems themost reasonable. sorry if i am wrong