can u show me the calculator step please

NE 22. I want to retire in 20 years, and I want to have an annuity of $100,000 a year for 10 years after retirement. I want to receive the first annuity payment at the end of the 20th year. How much do I need to deposit today in an investment account providing an 8% interest rate in order to afford this retirement annuity? (pick closest) A. $156,000 B. $168,000 $725,000 $671,000