Prices of a futures contract for 5 consecutive trading-days are provided in the table below. The initial margin requirement is set at $6.00 per contract and the maintenance margin is $3.60 per contract. Day Futures Price 0 $120 1 $118 2 $117 3 $119 4 $123 5 $125 On day 0, a trader enters into a short position for 15 contracts. The ending balance for the margin account on day 5 is closest to: O a. $15. o b. $210. O c. None of the above. O d. $60