The for header__________ can be used to vary the control variable over the odd num- bers between 1 and 10.
```
a) for ( int i = 1; i <= 10; i += 1 )
b) for ( int i = 1; i <= 10; i += 2 )
c) for ( int i = 1; i <= 10; i -= 1 )
d) for ( int i = 1; i <= 10; i -= 2 )
```
```
b) for ( int i = 1; i <= 10; i += 2 )
```
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