I'm placing my O in the middle-left position (1,0) to create a potential winning opportunity along the left vertical column. This is a strong strategic move because:

1. It creates an immediate threat - with Os at (0,0) and (1,0), I'm one move away from completing the left column.
2. This forces my opponent to block my potential win at (2,0) in their next move.
3. If they don't block, I can win on my next turn.
4. Even if they do block, this positioning gives me other opportunities to create winning lines in future moves.

The alternative moves don't create as immediate a threat or strategic advantage.