Mother _____ him to study hard, but it didn't seem to help. [ ]

A. hope

B. suggested

C. insisted on

D. tried to persuade

甲发现用银行卡在乙商场购买的一台电视机存在质量问题，遂要求乙商场退货。乙商场在办理退货手续时以现金方式退还给甲支付的价款，并将退货单送交收单银行。乙商场的行为不符合银行卡业务管理的规定。( )