Jenny wants to buy private health insurance. She can choose to pay a monthly premium of $150 starting from today or she can choose to pay an annual premium of $X today. Assume that the two payment methods are equivalent at the interest rate of 4.2% p.a. compounded monthly. Which of the following equations can be used to find X O a. 150 X (1 - 1.0035-12) 0.0035 O b. None of the equations can be used to find X. 150 X (1.003512 1)(1.0035) 0.0035 O d. X 150 (1.003512 1) 0.0035 150 (1 1.042-12)(1.042) 0.042 150 (1 - 1.0035-12)(1.0035) 0.0035