Question 10 1 pts Upon retirement at age 65, Thomas begins receiving a $1,000 per month joint and 50% survivor annuity benefit from his employer's traditional defined benefit pension plan. The annuity is to be paid over the joint lives of Thomas and his wife, Amy, age 64. Thomas's annuity starting date is January 1. Over the past 20 years, Thomas contributed $62,000 in after-tax contributions to the plan. The expected number of annuity payments for their joint life expectancy is 310. What is the amount of the tax-free portion of each monthly payment? $200 $620 $310 $500