Show solution to each part of a multipart question right after that part in exam package

Question

I use the great exam package to write my exams as a teacher. It lets me typeset solutions too, but for multipart questions, I want the solution to each part printed right after that part. By default, exam writes the solution to the parts of a multipart question together.

Here's a minimum example:

\documentclass{exam}

\begin{document}
\printanswers

\begin{questions}
\question Below is the data for an ``E-core.''
\begin{parts}
    \part Describe what an E is.
    \part Describe what a core is.
\end{parts}

\begin{solution}
\begin{parts}
    \part E usually comes before F.
    \part Core is usually inside a crust.
\end{parts}
\end{solution}

\end{questions}

\end{document}

Answer 1

Here's an example using the solution environment to print the solutions right after their corresponding part:

\documentclass[answers]{exam}
\usepackage{lipsum}

\begin{document}

\begin{questions}
\question
What if there were no air?
\begin{parts}
  \part[5]
  Describe the effect on the balloon industry.
  \begin{solution}
    \lipsum[1]
  \end{solution}
  \part[5]
  Describe the effect on the aircraft industry.
  \begin{solution}
    \lipsum[2]
  \end{solution}
\end{parts}
\end{questions}

\end{document}