Write a JavaScript program to implement an online quiz consisting of 5 multiple choice questions. The full mark is 100, in which 20 marks for each MC questions. You have to include a question bank of 10 multiple choice questions and the quiz questions will be randomly generated from question bank.

When the page is loaded, a confirm box will be opened to ask the user to confirm whether the user is ready for the quiz or not. If ready, it will display the questions on screen:

There should be a submit button at the end of the quiz to do the following tasks:
1.    check if all questions have been answered. If not, offer warning message to users to answer all questions.
2.    calculate the marks of the quiz
3.    display the marks of the quiz on a new window. In addition, it will display the correct answers for those wrong answers from the user, e.g. Question 1: The answer should be B.


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