You can use credit cards but it’s best to take some 【currency】 a

You can use credit cards but it’s best to take some 【currency】 as well.
A、coupon
B、money
C、coin
D、dime
【正确答案】：B
【题目解析】：currency意为“货币”；coupon优惠券；money货币；coin硬币；dime少量的钱；故选B。