Milton Inc. plans to raise a capital of $$3000,0000.$ The capital will be raised through equity and debt financing while maintaining a debt$-$equity ratio of $1/3.$ The cost of equity is $14\mathrm{.}6\%$ an the before$-$taxcost of debt is $8\mathrm{.}6\%.$ If the tax$-$rate is $20\%,$ what will be the cost of capital for Milton Inc.?

a$)11\mathrm{.}67\%$

b$)12\mathrm{.}67\%$

c$)12\mathrm{.}22\%$

d$)13\mathrm{.}67\%$