MCQs vs mcq's

Hello everyone!
Please it is urgent and answer is reguired.
MCQs means (Multiple choice questions). Which one is right?
MCQs or MCQ’s? Should it be used with apostophe (’) or not?
Please explain the reason as well.
Thank you in advance!
Naz

There’s no need to use an apostrophe. It’s just like VIPs, MPs,…