Which of the following is NOT the proper Chinese equivalent for

Which of the following is NOT the proper Chinese equivalent for its English item?[ ]
A、吃软不吃硬--open to persuasion, but not to coercion
B、布衣素食--coarse clothes and simple fare
C、打小报告--be a reporter
D、没词儿--be suck for an answer
【正确答案】：C
【题目解析】：选项A,B,D在词典中都可以查到，在课本中作为例子也出现过。