If you are prepared to increase your ________to 15%, we shall be

If you are prepared to increase your ________to 15%, we shall be pleased to purchase the complete stock.
A、price
B、discount
C、sales volume
D、cost
【正确答案】：B
【题目解析】：price价格；discount折扣；sales volume销售量；cost费用，代价句意：如果贵方准备将折扣提高到15%，我们将乐意购买全部存货。