George owns a life insurance policy on the life of his wife, Maya, who is a stay$-$at$-$home mom. George is totally disabled after an accident and is unable to return to work. George could not pay the premiums for the policy after the accident, but the policy remains in force as the premiums were waived. Which of the following supplementary benefits did George add to his policy?bE$91$NELmOW$5$GMXFnQnBwNTVrUURtUT$09$a$.$ O The waiver of premium for total disability benefitb. The parent waiver benefitc.O The payor waiver benefitd. O The guaranteed insurability benefit.