【正确答案】 B

【答案解析】In order to be considered arbitrage there must be no risk in the trade.
It doesn"t matter if commissions are paid as long as the amount of the price discrepancy is enough to offset the amount paid in commissions. There must be a guaranteed profit in an arbitrage trade. In order to be considered arbitrage there must be no initial investment of one"s own capital. One must finance any cash outlay through borrowing.