单选题 —How do you deal with the disagreement between the company and the customers?
—The key ______ the problem is to meet the demand ______ by the customers.

【正确答案】 B
【答案解析】[考点] 固定搭配
[解析] “The key to +n./doing”是固定搭配；demand和make之间应为被动关系，所以应选B项。