Enhancing an (android) Flag Quiz App (for school)

This is an exercise from an old android book. The app is already made and given to you. all you have to do is add the following features to it. 5.5 (Enhanced Flag Quiz App) Make the following enhancements to the Flag Quiz app: a) Count the number of questions that were answered correctly on the first try. After all the questions have been answered, display a message describes how well the user performed on first guesses. b) Keep track of the score as the user proceeds through the app. Give the user the most points for answering correctly on the first guess, fewer points for answering correctly on the next guess, etc. c) Use a SharedPreferences file to save the top five high scores, then store the top five scores in the SharedPreferences file that also stores this app's settings. d) Add multiplayer functionality. (just 2 users is ok) e) If the user guesses the correct flag, include a “bonus question” asking the user to name the capital of the country. If the user answers correctly on the first guess, add 10 bonus points to the score; otherwise, simply display the correct answer, then allow the user to proceed to the next flag. ZIPPED FILE IS TOO BIG TO UPLOAD HERE. BUT WILL BE PROVIDED