\documentclass[onepage]{webquiz}
\title{An answer$*$ (and comparison=string)}
\begin{document}
  \begin{question}     % a quiz question
     What is the capital of Australia?
     \answer*{Canberra} (Correct answer ``Canberra'')
     \whenRight  Yes, Sydney is the capital of NSW.
     \whenWrong Remember to correctly capitalise your answer!
  \end{question}
  \begin{question}     % a quiz question
     What is the capital of Australia?
     \answer{Canberra} (Correct answer ``Canberra'')
     \whenRight  Yes, Sydney is the capital of NSW.
     \whenWrong Remember to correctly capitalise your answer!
  \end{question}
\end{document}