I AM TRYING TO MAKE ON TWO-FACTOR AUTHENTICATION BUT IAM GETTING MSG IS NOT AVAILABLE FOR YOU APPLE ID AT THIS TIME

Turn off your caps lock. All caps is considered shouting and therefore rude.

Many will not even look at your post due to the all caps.

2 factor authentication is not universally available. See what Apple has

to say about it here:

Availability of two-factor authentication in iOS 9 and OS X El Capitan - Apple Support