Price equal to or below which you will get a margin call option is closest to?

You have been watching Company A and believe that the share price should increase over the next two months. Assuming that your broker charges a borrowing rate of 7% a year, requires an initial margin of 60%, maintenance margin of 30% and an initial assumed exposure of 1000 shares, calculate: Time Bid 29.38 32.55 Two months time 31.30 The price equal to or below which you will get a margin call is closest to: A) R21.66 B) R19.39 CR16.79 D) R13.35 E) R22.41 IS