XYZ LTD issued $3-$ year, $6\%$ annual coupon payment bond is priced at TOS per $100$ of par value. The yield to matunity of the land

a$.9\mathrm{.}2\%$

b$.8$:$7\%$

c$5\mathrm{.}6\%$

d$.4\mathrm{.}2\%$