A man turns 40 today and wishes to provide supplemental retirement income of $3 000 at the beginning of each month starting on his 65th birthday. Starting today, he makes monthly contributions of $X to a fund for 25 years. The fund earns a rate of j12 = 8% p.a. Each $1 000 will provide for $9.65 of income at the beginning of each month starting on his 65th birthday until the end of his life. Calculate X. a. 450.65 b. 324.73 c. 328.12 d. 326.89 e. 355.45