2010年某市居民刘某家庭总收入为40000元人民币，其中食

2010年某市居民刘某家庭总收入为40000元人民币，其中食品支出为15000元，日用品支出为3000元，衣物支出为4000元，交往支出为2000元，学习费用支出为2000元，娱乐消费支出为1000元，购买国债3000元，储蓄存款10000元。刘某家的恩格尔系数为

A．37.5%

B．50%

C．55.6%

D．40.5%

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