Which of the Following Correctly Describes the Computation of the fiRm's

Which of the following correctly describes the computation of the firm's weighted average cost of capital (WACC) ?

A) (E/V) + RE + (D/V) + RD + (1-TC)
B) (E/V) × RE × (1 - TC) + (D/V) × RD
C) (D/V) × RE + (E/V) × RD × (1-TC)
D) (E/V) + RE + (D/V) + RD
E) (E/V) × RE + (D/V) × RD × (1-TC)