Multiple question quiz program

Question

Please help me to write program to mark a multiple choice exam that the students will write. The correct answers are as follows:

1. E

2. D

3. D

4. B

5. A

6. C

7. E

8. B

9. D

10. C

11. D

12. A

13. A

14. D

15. D

16. E

17. A

18. E

19. A

20. D

A student must correctly answer 15 out of 20 questions to pass the exam. The exam questions are printed on paper and the students enter their answers to the questions using the program you write. After the students enter all the answers to the questions the program will either display a message indicating that they passed the exam and the total number of correct answers or a message ind icating that they failed the exam and the total number of incorrect answers as well as the list of question numbers that the student missed.

in C# and using Array and Methods