Need Help In knowing the right ans in an online multi choice exam

Please i'll be writing exams next month which is an online cbt exams which i need to login, after login i see my four subject in a horizontal row which i had earlier register and click proceed and then your questions and radio buttons...i'm a noob in js, my problem is how can i know the correct ans or automatically select the option that is regarded as the right ans... Thanks...

Study

When I was a university student more than 50 years ago, we studied our subjects to the best of our ability and actually had to write down the answers on paper! I don't think even an advanced knowledge of JavaScript is going to help you cheat in an online test.