单选题：Which line is NOT correct?

Which line is NOT correct? @[B](2)
```
1. main()
2. {
3. int i;
4. int a[3]={1};
5. scanf("%d",&a);
6. for(i=1;i<3;i++) a[0]=a[0]+a[i];
7. printf("a[0]=%d\n",a[0]);
}
```
A. 4
B. 5
C. 6
D. 7




A.4
B.5
C.6
D.7


答案：B