Company A$\text{'}$s bonds currently sell for $$1,320$ and have a par value of $$1,000.$ They pay a $$95$ annual coupon and have a $20-$year maturity, but they can be called in $5$ years at $$1,070.$ What is their yield to call $($YTC$)?$

a$.3\mathrm{.}99\%$

b$.7\mathrm{.}20\%$

c$.6\mathrm{.}72\%$

d$.6\mathrm{.}58\%$