题目内容

There is the following function call statement: func(rec1,rec2+rec3,(rec4,rec5)); The number of actual parameters in the function call statement is ( )

A. 3
B. 4
C. 5
D. There are grammatical mistakes

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A. p=2*(int *)malloc(sizeof(int));
B. p=(int *)malloc(2*sizeof(int));
C. p=(int *)malloc(2*4);
D. p=(int*)calloc(2, sizeof(int));