Which statement about the cost of capital (WACC) do you think is the most correct?

Select one:

a.

Once a company has calculated the cost of its capital (e.g 10%), it is suitable for evaluating all the company's projects

b.

Implementation of the Cost of Capital fails if the cash flows change signs several times during the project lifetime

c.

Increase in the cost of capital should also increase the value of the company

d.

The company should strive to lower the cost of capital