Mr. Roberts wants to achieve financial independence in 20 years. He has guessed that he needs an additional \($500,000\) to fund this goal. He anticipates 7 percent after-tax return on any potential investment. What annual payment should he make to the hypothetical investment?
A. \($17,511.46\).
B. \($12,196.46\).
C. \($17,511.46\).
D. \($22,848.46\).