SuperSky Ple issued shares, where the covariance between the SuperSky Plo shares and the UK stock market index is 24 , while the varianoe of the market is 30 . The yied on tie UK treasury bilis (Gilts) currently is 5% and the return on the UK stock market index is 13%. What is the company's cost of equity? A. 13% a. 11.4% C. 15.4% D. None of the octions are correct