How much money should timothy and tiffany deposit annually for 20 years in order to provide?

Below is to complete the question;

How much money should Timothy and Tiffany deposit annually for 20 years in order to provide an income of $30,000 per year for the next 10 years? Assume the interest rate is a constant 4%. 

 Use the annual rate formula. 

You are given Future, F=$30,000 
You are given interest, i=4% or 0.04 
You are given time, n=10 years for future equation and n=20 years for annual equation. 

Plug those numbers in the formulas your teacher gave you.

The correct answer for this question would be letter choice a) simulating the speech conditions or the first option.