MR chris!HELP!

DO YOU THINK I CAN TAKE THE BUSINESS EXAM IN JAN???IS IT DIFFICULT?????
I REALLY WANT TO KNOW?
IF I ENTRY THE EXAM,WHAT GRADES DO YOU THINK I COULD GET????IS IT POSSIBLE TO GET B????????????????????????
AND IF I DON`T JOIN THE EXAM THIS IN JAN,IS IT BAD FOR ME?
thank you！！！！！！！！！！