Alphabet question label

Question

I'm using the exam documentclass, and I'm wondering if there is a way to label the questions with a, b, c, ... instead of with 1, 2, 3, ...

What I have often found is that we could redefine \questionlabel, but that still involves a counter (natural number). Example taken from How to change the question number from just '1' to 'Question No. 1.' in the exam class?

\renewcommand{\questionlabel}{Question No.~\thequestion.}

Maybe there is a way to convert the number from \thequestion to a letter from the alphabet?

Answer 1

Since the OP provided no MWE, I borrowed one from here: Numbered copies with exam class.

The OP was on the right track, in that \questionlabel is the macro to be redefined. In this case, \alph{<counter>} is the way a counter is portrayed in lower-case alphabetic format.

\documentclass[addpoints]{exam}
\renewcommand{\questionlabel}{\alph{question}.}
\begin{document}
  \begin{questions}
    \question[10]
    Why is there air?

    \question[15]
    How much wood would a woodchuck chuck if a woodchuck could chuck
    wood?

    \question[10]
    Compute $\displaystyle\int_0^1 x^2 \, dx$.
  \end{questions}

  \gradetable[v][questions]
\end{document}