7. a) A board of tic-tac-toe game is shown below. Piece X is for player A. player B. The next move is player A. Show the complete game tree given board. Mark each leaf of the game tree as A wins, B wins, or dravw. Piece O is for X-X b) Does player A have a strategy that guarantees win for A. State the strategy. Does player A have a strategy that guarantees draw in the game. State the strategy. 8. Boards of tic tac toe game are shown below. Piece X is for player A. Piece O is for player B. The next move is player A. Does player A have a strategy that guarantees win for A. State the strategy b) XOX