When should firms follow "the Big-U" in their calculation of a project-specific WACC?

Group of answer choices

A.) When the new project differs from the average project of the firm in terms of risk

B.) When the new project differs in its financing (debt and equity weights) from the firm's overall debt and equity [i.e. capital structure] weights

C.) When the new project differs in its financing (debt and equity weights) from the pure plays' average debt and equity [i.e. capital structure] weights

D.) All of the above