What is the approximate yield to maturity for a $$1,000$ par value bond selling for $$600$ that matures in $15$ years and pays $7$ percent interest semi$-$annually?

a$.6\mathrm{.}0\%$

b$.3\mathrm{.}6\%$

c$.13\mathrm{.}3\%$

d$.12\mathrm{.}1\%$

e$.8\mathrm{.}2\%$

f$.8\mathrm{.}9\%$