MrQuest Plans to Engage in a Transaction That Will Generate

Mr.Quest plans to engage in a transaction that will generate $10,000 cash flow in year 0,year 1,and year 2 ($30,000 total cash flow) .Which of the following statements is true?

A) If the cash flow is not taxable income,the before-tax and after-tax cash flows from the transaction are equal.
B) If the cash flow is not taxable income,the NPV of the transaction is $30,000.
C) Mr.Quest's discount rate for computing the NPV of the transaction depends on his marginal tax rate.
D) None of the above is true.