I'm choosing column 4 because it's adjacent to my opponent's piece in column 3. This is a strong strategic position that gives me flexibility for future moves. By playing next to their piece, I'm starting to develop potential horizontal winning opportunities while maintaining access to diagonal and vertical options. Playing adjacent to the center also helps me control the middle part of the board, which is crucial in Connect Four. Column 4 allows me to start building my position without giving my opponent any immediate advantage.