Suppose today is 1 Jan 2015. To celebrate SG50, the shopping mall is doing a promotion in cooperation with the bank. If you spend more than $1,000 on your credit card today, $10 will be credited back to your bank account at the beginning of each month of 2015, and the first credit will happen today. Your bank account enjoys an interest rate of 6% which is compounded monthly. Suppose you spent $1,087 in the shopping mall today, how much would you save from this promotion (in today's dollar)? (A) (B) (C) (D) $87.00 $115.19 $116.77 $120.00 $123.97