—Hi, James. There is someone _______ for you at the school gate.

—It may be my mother. She comes to see me. [ ]

A. waited

B. waiting

C. to wait

下列经济现象与经济生活道理对应正确的是（）

A、冬天黄瓜比夏天贵一一供求决定价格

B、不看广告看疗效一一消费的从众心理

C、学生购买平安保险一一购买社会保险是规避风险的有效措施

D、制售伪劣产品被淘汰一一诚信关系企业成功