After analyzing the board, I noticed that while there’s no immediate win, dropping an O in column 6 creates a strong future threat. In column 6, the lowest two cells (row4 and row3) are already occupied by our O’s and an opponent’s piece is in row5. By playing in column 6, our O lands in row2, which creates a vertical stack of three O’s (rows 2, 3, and 4). On the next turn, if unblocked, we could drop another O in column 6 to complete a connect-4 vertically. This move forces the opponent to respond and gives us a strong setup for a win. Therefore, I choose column 6.