Which investment should I choose?

Bond K: Municipal bond, Price=$18,000, Par=$20,000, Coupon rate=7% (semiannual coupons), 10 years to maturity Bond L: Municipal bond, Price=$5,200, Par=$5,000, Coupon rate=8% (semiannual coupons), 7 years to maturity

E. Bond K

F. Bond L

G. They are equivalent, so both are the same

H. Not enough info.