Since my opponent has placed their X in the center position (1,1), I'll take the top-left corner (0,0). This is a strong strategic move because:
1. It prevents my opponent from creating a diagonal line from this corner through the center
2. It gives me two potential winning paths - along the top row and down the left column
3. Taking a corner early in the game generally provides more strategic options than taking a side position
By taking this corner, I'm setting up multiple potential winning lines while blocking one of my opponent's potential diagonal wins.