Tony Hawk's Adventure (THA) Issued Callable Bonds on January 1

Tony Hawk's Adventure (THA) issued callable bonds on January 1, 2012. THA's accountant has projected the following amortization schedule from issuance until maturity:
$\begin{array}{llccc} & \text { Cash } & \text { Interest } & \text { Increase in } & \text { Carrying } \\\text { Date } & \text { Paid } & \text { Expense } & \text { Carrying Value } & \text { Value }\\1 / 1 / 12 & & & & \$ 194,758 \\6 / 30 / 12 & \$ 7,000 & \$ 7,790 & \$ 790 & 195,548 \\12 / 31 / 12 & 7,000 & 7,822 & 822 & 196,370\\6 / 30 / 13 & 7,000 & 7,855 & 855 & 197,225 \\12 / 31 / 13 & 7,000 & 7,889 & 889 & 198,114 \\6 / 30 / 14 & 7,000 & 7,925 & 925 & 199,039 \\12 / 31 / 14 & 7,000 & 7,961 & 961 & 200,000\end{array}$
-What is the annual market interest rate on the bonds? (Hint: Be sure to provide the annual rate rather than the six month rate.)

A) 4%.
B) 3.5%.
C) 7%.
D) 8%.