B Inc. is an MNC located in the United States. B Inc. would like to estimate its weighted average cost of capital. On average, bonds issued by B Inc. yield 9%. Currently, treasury security rates are 3%. Furthermore, B Inc. stock has a beta of 1.1. , and the return on the Wilshire 5000 stock index is expected to be 10%. B inc target captial structure is 70% debt and 30% equity. If B corp is in the 25% tax bracket, what is the WACC?

A) 9.51%

B)10.7%

C)7.94%

D)7.31%