单项选择题

A.借记卡、贷记卡均等于0.78%
B.借记卡0.45%,20元封顶;贷记卡0.55%,70元封顶
C.借记卡0.45%,20元封顶;贷记卡0.55%,不封顶
D.借记卡、贷记卡均等于0.45%