Consider an $8\%$ coupon rate payable semi$-$annually with an R$1000$ face value and R$870\mathrm{.}50$ selling price. The current yield of the bond is closest to $...$

Select one:

a$.6\mathrm{.}60\%$

b$.8\mathrm{.}19\%$

c$.9\mathrm{.}19\%$

d$.7\mathrm{.}89\%$