Generating bubble answer sheet

Question

I wish to adding bubble answer sheet in the following MWE:

\documentclass[twoside,a4paper,cleardoublepage=empty,14pt]{book}
\usepackage{exsheets}
\SetupExSheets[question]{type=exam}
\SetupExSheets{counter-format=ch.qu[1]}
\RenewQuSolPair{question}[headings-format=\large\bfseries,name=Problem]{solution}
\usepackage{enumerate,tikz}
\newcommand\squared[1]{\tikz[baseline=(char.base)]{
        \node[shape=rectangle,draw,inner sep=3pt] (char) {#1};}}
\usepackage{enumitem}
\usepackage{multicol}
\setlist[enumerate]{label=\protect\squared{\arabic}}
\begin{document}
\chapter{Analysis of Algorithms}

\begin{question}
    Which of the following answers is correct for the given recurrence relation $T(n)=T(n-1)+n$?
    \begin{enumerate}
        \item $O(n^2)$
        \item $O(n^3)$
        \item $O(n^4)$
        \item $O(n\log n)$
    \end{enumerate}
\end{question}

\begin{solution}
    this is a solution
\end{solution}
\chapter{answer Sheet}





\end{document}

In more detail, I am writing a multiple choice book. I wish to add a bubble answer sheet to chapter Answer Sheet so that for each question mark correct choice like below image:

Answer 1

This can be accomplished without modifying exsheets.

\documentclass[twoside,a4paper,cleardoublepage=empty,14pt]{book}
\usepackage{exsheets}
\SetupExSheets[question]{type=exam}
\SetupExSheets{counter-format=ch.qu[1]}
\RenewQuSolPair{question}[headings-format=\large\bfseries,name=Problem]{solution}
\usepackage{enumerate,tikz}
\newcommand\squared[1]{\tikz[baseline=(char.base)]{
        \node[shape=rectangle,draw,inner sep=3pt] (char) {#1};}}
\usepackage{enumitem}
\usepackage{multicol}
\setlist[enumerate]{label=\protect\squared{\arabic}}
\newcommand{\bubble}[1]% #1 is correct choice (out of 4)
{\bgroup
  \fboxsep=0pt
  \count1=0
  \count2=#1\relax
  \loop\ifnum\count1<4
    \advance\count1 by 1
    \ifnum\count1=\count2
      \fbox{\rule[-\dp\strutbox]{1em}{\baselineskip}}\quad
    \else
      \fbox{\makebox[1em]{\number\count1}\strut}\quad
    \fi
  \repeat
\egroup}
\begin{document}
\chapter{Analysis of Algorithms}

\begin{question}
    Which of the following answers is correct for the given recurrence relation $T(n)=T(n-1)+n$?
    \begin{enumerate}
        \item $O(n^2)$
        \item $O(n^3)$
        \item $O(n^4)$
        \item $O(n\log n)$
    \end{enumerate}
\end{question}

\begin{solution}
    \bubble{3}
\end{solution}
\chapter{answer Sheet}

\printsolutions


\end{document}