Required information [The following information applies to the questions displayed below.) John (age 60 and single) has earned income of $3,300. He has $35,100 of unearned (capital gain) income. a. If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2019? Maximum deductible IRA contribution b. If he does participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2019? Maximum deductible IRA contribution c. If he does not participate in an employer-sponsored plan, what is the maximum deductible IRA contribution John can make in 2019 if he has earned income of $18,100? Maximum deductible IRA contribution