有以下程序

# include <stdio.h>

# define N 5

# define M N+1

# define f(x) (x*M)

main()

{ int i1, i2;

i1 = f(2) ;

i2 = f(1+1) ;

printf("%d %d\n", i1, i2);

}

程序的运行结果是

A)12 12

B)11 7

C)11 11

D)12 7