SIROM Scientific Solutions has $4 million of outstanding equity and $12 million of bank debt. The bank debt costs 5% per year. The estimated equity beta is 1. If the market risk premium is 7% and the risk-free rate is 4%, compute the weighted average cost of capital if the firm's tax rate is 30%. Question 2 options: A) 4.65% B) 5.01% C) 5.38% D) 5.98% E) 6.51%