下列哪些情形，收单机构应与商户解除协议，并书面通知中国银联（）

A.有欺诈行为的

B.因商户其它原因导致收单风险增大的

C.多次无故拒绝受理银联卡的

D.多次出现违章操作，经指出拒不纠正的。

In each of the following groups of words, there are four underlined letters or letter combinations marked A, B, C and D. Compare the underlined parts and identify the one that is different from the others in pronunciation. Mark your answer by blackening the corresponding letter on the Answer Sheet.（）

A. cry   

B. circle    

C. class     

D. picture