Which Is True of Social Security Benefits

Which is true of Social Security benefits?

A) A married retired women who earned more than her spouse cannot receive the benefit accrued from her own work history. Instead she is eligible only for the lower benefit based on her husband's earnings.
B) A divorced woman who was married for 10 years is eligible to receive half of her ex-husband's benefit when he retires.
C) A 50-year-old widow with no children is eligible to receive her husband's benefits immediately upon his death.
D) none of the above