Btukfyl

I am making mini question banks on different chapters of physics. For this, I am using the 'exam' class. what I need is the following:

I want to put some information for my own use against each of the questions. For example, year, difficulty level (hard, easy etc.), topic name and such labels. I need the ability to print or suppress printing these labels depending on situations.

Following is an MWE:

documentclass[addpoints,answers,10pt]{exam}

usepackage[T1]{fontenc}

usepackage{graphicx}

usepackage{tabularx}

usepackage{nonfloat}

usepackage{caption}

usepackage{amsmath,amssymb}

usepackage{lmodern}

usepackage{textcomp}

usepackage{ifpdf}

usepackage[export]{adjustbox}





usepackage{graphicx}

usepackage{background}





unframedsolutions

printanswers



begin{document}

        section{ABC}

    begin{questions}



        question This is question 1 ? 

        begin{solution}

            This is answer 1

        end{solution}



        question This is question 2

        begin{solution}

            This is answer 2

        end{solution}

        question This is Question 3

        begin{solution}

            This is answer 3

        end{solution}

end{questions}

end{document}

What is want is like below :

    begin{document}

    section{ABC}

    begin{questions}



        question This is question 1 ? label{difficult, 2009, Light}

        begin{solution}

            This is answer 1

        end{solution}



        question This is question 2 label{moderate, 2019, Sound}

        begin{solution}

            This is answer 2

        end{solution}

        question This is Question 3

        begin{solution}

            This is answer 3

        end{solution}

end{questions}

end{document}

And as we use 'printanswers', I should be able to use 'printlabels' or 'noprintlabels'

How to achieve this ?

Something like this??

documentclass[addpoints,answers,10pt]{exam}

usepackage[T1]{fontenc}

usepackage{graphicx}

usepackage{tabularx}

usepackage{nonfloat}

usepackage{caption}

usepackage{amsmath,amssymb}

usepackage{lmodern}

usepackage{textcomp}

usepackage{ifpdf}

usepackage[export]{adjustbox}





usepackage{graphicx}

usepackage{background}

newcommandprintqtags{defqtag##1{partextbf{Tag: (##1)}}}

newcommandnoprintqtags{defqtag##1{}}



unframedsolutions

printanswers

printqtags

    begin{document}

    section{ABC}

    begin{questions}



        question This is question 1 ? qtag{difficult, 2009, Light}

        begin{solution}

            This is answer 1

        end{solution}



        question This is question 2 qtag{moderate, 2019, Sound}

        begin{solution}

            This is answer 2

        end{solution}

        question This is Question 3

        begin{solution}

            This is answer 3

        end{solution}

end{questions}

end{document}

With printqtags changed to noprintqtags, the result becomes