A company is planning for the budget in year 2021. There are four three-year projects suggested by the department. Project A requires an initial investment of $13000 and the cash flow for the following three years are $1300, $1300, $15600 respectively. Project B requires an initial investment of $3900 and the cash flow for the following three years are $3900, $390, $390 respectively. Project C requires an initial investment of $9100 and the cash flow for the following three years are $9100, $910, $910 respectively. Project D requires an initial investment of $2600 and the cash flow for the following three years are $1300, $650, $650 respectively. The CEO asks you to pick up the projects within a budget constraint of $15600 and asks you to choose the projects. What is your choice?

a.) if the company's cost of capital is 15.26% chose project B and C

b.)if the company's cost of capital is 13,27%, choose project A and D

c.) If the company's cost of capital is 15.82%, choose project A and D

d.) If the company's cost of capital is 9.49%, choose project B and C