A 5% bond with semiannual coupons is redeemable at par in kk years. It is purchased at a premium of $300. A 4% bond with

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A 5% bond with semiannual coupons is redeemable at par
in kk years. It is purchased at a premium of $300. A
4% bond with semiannual coupon payments and with the same par value
is also redeemable at par in k years. It is purchased at
a premium of $100.
The nominal annual yield rate compounded semiannually is the
same for these two bonds. Which of the following is closest to this
yield rate.
A 2.0%
B 2.5%
C 3.0%
D 3.5%
E 4.0%