Please help me study by answering the following question.

A firm's cost of capital:

a)depends on the firm's total project risk level.

b)will decrease as the risk level of the firm increases.

c)is independent upon how the funds raised are going to be spent.

d)should be applied as the discount rate for any project considered by the firm.

e)for a specific project is primarily dependent upon the source of the funds used for the project.