题目内容（请给出正确答案）

[单选题]

下列叙述中错误的是()。

A.在程序中凡是以“#”开始的语句行都是预处理命令行

B.预处理命令行的最后不能以分号表示结束

C.#define MAX是合法的宏定义命令行

D.C程序对预处理命令行的处理是在程序执行的过程中进行的

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