1. Connect 4 is a game played by 2 players on a 6 by 7 grid. Players take turns placing a piece in a column and that piece then descends to the lowest unoccupied space in the column. A player wins once four of their pieces form a straight lineeither horizontally, vertically, or diagonally. In this question you will provide an implementation of Connect 4 in C. The game board will be represented by a 6 by 7 multi-dimensional char array with the first player being represented by 'X', the second player represented by 'o', and any other character representing an open space. (a) Provide an implementation of the following C functions: // make_move (board, column, player) updates the board following a move by the given player in the given column; returns false if the move was illegal because the column was full // requires: 0