20-year Bond C with a face value of $1000 is issued on 1 June 2021. It pays annual coupons with a coupon rate of 3% and has a yield to maturity of 2.5% at issuance. 1 year later, right after the coupon is paid out, the yield to maturity is 3.2%. What is the total rate of return on the bond for an investor who bought it on 1 June 2021, held it for a year, and sold right after the coupon was paid out?

a.

-7.059%

b.

-0.4350%

c.

-6.607%

d.

2.5%