单选题：以下程序段的输出结果是

以下程序段的输出结果是 @[B](2)
```c++
int i, j;
for (i = 1; i < 4; i++) {
for (j = i; j < 4; j++)
printf("%d * %d = %d ", i, j, i * j);
printf("\n");
}
```
A.
```c++
1 * 1 = 1 1 * 2 = 2 1 * 3 = 3
2 * 1 = 2 2 * 2 = 4
3 * 1 = 3
```
B.
```c++
1 * 1 = 1 1 * 2 = 2 1 * 3 = 3
2 * 2 = 4 2 * 3 = 6
3 * 3 = 9
```
C.
```c++
1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6 3 * 3 = 9
```
D.
```c++
1 * 1 = 1
2 * 1 = 2 2 * 2 = 4
3 * 1 = 3 3 * 2 = 6 3 * 3 = 9
```




A.
```c++
1 * 1 = 1 1 * 2 = 2 1 * 3 = 3
2 * 1 = 2 2 * 2 = 4
3 * 1 = 3
```
B.
```c++
1 * 1 = 1 1 * 2 = 2 1 * 3 = 3
2 * 2 = 4 2 * 3 = 6
3 * 3 = 9
```
C.
```c++
1 * 1 = 1
1 * 2 = 2 2 * 2 = 4
1 * 3 = 3 2 * 3 = 6 3 * 3 = 9
```
D.
```c++
1 * 1 = 1
2 * 1 = 2 2 * 2 = 4
3 * 1 = 3 3 * 2 = 6 3 * 3 = 9
```


答案：B