Which of the following is NOT the proper Chinese equivalent for its English item？

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