Arnold wants to make a contribution to his Traditional IRA. He will make a contribution of $5,000 even if it is not deductible. However he wants to be sure he will not be subject to any penalty. His AGI is $20,000. What additional information, if any, do you need to advise him?

1. a) His prior year tax return and history of contribution to his IRA.

2. b) Whether he was a participant in an employer plan.

3. c) The amount of his compensation.

4. d) None of the above.

5. e) All the above