A 10-year annuity has annual payments of $1,000. The first payment is in 1 year. If interest is 5%p.a (effective annual rate) for the first 3 years followed by 6%p.a (effective annual rate) for 7 years, what is the future value of this annuity at the end of 10 years? Select one:

a. $12,002.34

b. $13,001.45

c. $13,134.03

d. $13,969.78