4. Henry, age 35, is a stay at home dad. His wife, Melissa, age 34 , is a physician, has $160,000 of earned income. Answer the following questions: a. Assume Melissa does not have a plan at work. How much can Henry and Melissa contribute each to a traditional IRA? How much of the contribution can they deduct? To a Roth IRA? b. Now assume Melissa actively participates in a plan at work. How much can each contribute to a traditional IRA? How much of the contribution can they deduct? To a Roth IRA?.