4. a) You have a choice of accepting one of the investment options from the following alternatives. At 9% opportunity cost of investment, which alternative would you prefer? Alternative C Alternative D Year Alternative A (At the end of each year) 0 1 Tk.1400 Alternative B (At the beginning of each year) 5700 (right now) 2 3 1400 1400 1400 1400 Tk.2200 1800 1400 1000 200 4 5 7500 (at the end of 5th year) b) What is the rate of return on an investment of Tk. 50,000 if the company will receive Tk. 95,000 after 5.5 years? c) At 10% annual interest, how long it will take an initial deposit of Tk. 33,000 to triple? d) Calculate the Future value and effective annual rate (EAR) of Tk. 100,000 deposited for 4 years at 12% annual interest compounded quarterly. 6+1++1+2