Chris has just calculated that if he puts $100 per month into his retirement account he will end up with $180,000 at retirement. How much would he end up with if he put $200 per month into his account instead? Assume that the interest rate and the term of the annuity are the same in both cases.
A. More than $360,000
B. Impossible to tell without knowing the interest rate and term of the annuity.
C. Less than $360,000
D. $360,000