Which of the following statements accurately describes the utilization of tax$-$deferred retirement accounts for tax planning?

A$)$ Contributions to tax$-$deferred retirement accounts are tax$-$deductible in the year they are made.

B$)$ Withdrawals from tax$-$deferred retirement accounts are tax$-$free.

C$)$ Contributions to tax$-$deferred retirement accounts are taxed immediately upon contribution.

D$)$ Withdrawals from tax$-$deferred retirement accounts are subject to income tax.