Compete the function checkBoard that we began in lecture earlier this week for checking a 3-by-3 Tic-Tac-Toe board. If needed, you can review the rules of Tic-tac-toe here. Your function will receive a 3-by-3 two-dimensional array of characters, with each space containing an X, O, or a . if nobody has played in that position. You should return the char X if X has won the game, O if O has won the game, and . if neither player has won. Note that you should only check for vertical and horizontal winners, not diagonals. (Checking for diagonals will actually cause your submission to fail our tests.) The passed board may be null. In that case you should return that neither player has won.

Which parts of a presentation should be the most general? a. introduction and conclusion b. introduction and outline c. outline and conclusion d. outline and body

1. ask the user how many questions are in the quiz. 2. ask the user to enter the key (that is, the correct answers). there should be one answer for each question in the quiz, and each answer should be an integer. e.g., 34 7 13 100 81 3 9 10 321 12 might be the key for a 10-question quiz. you will need to store the key in an array. 3. ask the user to enter the answers for the quiz to be graded. there needs to be one answer for each question. note that these answers do not need to be stored; each answer can simply be compared to the key as it is entered. 4. when the user has entered all of the answers to be graded, print the number correct and the percent correct. 5. add a loop so that the user can grade any number of quizzes with a single key. after the results have been printed for each quiz, ask "grade another quiz? (y/n)." note: you only have one array (the key). you are not creating a new key for each set of quiz answers.

Which explains extrinsic motivation? a)motivation in which there is a reward b)motivation that is personally satisfying c)motivation that is personally meaningful d)motivation in which the subject is interesting