If one says what he believes to be false, he violates ______.

If one says what he believes to be false, he violates ______.
A、the maxim of quantity
B、the maxim of manner
C、the maxim of quality
D、the maxim of relation
【正确答案】：C
【题目解析】：If one says what he believes to be false, he violates the maxim of quality.