If a base class pointer, p, points to a derived class instance, and both base and derived classes have a method void doIt() which takes no parameters, then p->doIt() will invoke the derived class version: a. only if both the base class method and the derived class method are declared virtual.
b. if the derived class method is declared virtual, but the base is not declared virtual.
c. if the base class method is declared virtual, even if the derived class method is not declared virtual.

Sports and entertainment class, your goal is to increase attendance and make a profit for a game by getting your team on a winning track with total salaries less than $3,000,000

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.

Match the function to its purpose. fast worth 50pts.