Final answer:
If G died at age 50 after purchasing a Family Income policy with a 20-year rider at age 40, G's family would receive an income for an additional 10 years. Option B
Step-by-step explanation:
The student's question pertains to the period for which G's family would receive an income following G's death, under a Family Income policy with a 20-year rider. Since G purchased the policy at age 40 and passed away at age 50, the family will continue to receive benefits from the rider for the remainder of the 20-year term.
As G died 10 years after purchasing the policy, the family will receive income for another 10 years, until the rider period ends.
The correct answer is therefore: B.10 years.