which of the following statements about IRAs is true

A)a taxpayer of any age may contribute to a traditional IRA ,AS LONG AS THE contribution does not exceed taxable compensation.

b)a taxpayer with timely filed extension have until October 15 of the tax year to establish and contribute to an IRA.

C)TAXPAYER MAY BE ABLE TO REDUCE THEIR TAX LIABILITY BY CONTRIBUTING TO A TRADITIONAL IRA after the tax year has ended

D)TAXPAYER WHO PARTICIPATE IN AN EMPLOYER-SPONSORED RETIREMENT PLAN ARE NOT ELIGIBLE TO CONTRIBUTE TO A TRADITIONAL IRA