\newproblem{\estraialfa{3}{a,b,c,x,y,z}{element} \FPsetpar{a}{2}{5} \item \PTs{1} exercise 11a \[\left\{\elementi, \; \elementii,\; \elementiii\right\}\] \begin{answers}{1}\bChoices[random] \Ans1 answer 1 correct\eAns \Ans0 answer 2 wrong\eAns \Ans0 answer 3 wrong\eAns \eChoices\end{answers}} \newproblem{\estraialfa{3}{a,b,c,x,y,z}{element} \FPsetpar{a}{2}{5} \item \PTs{1} exercise 11b \[\left\{\elementi, \; \elementii,\; \elementiii\right\}\] \begin{answers}{1}\bChoices[random] \Ans1 answer 1 correct\eAns \Ans0 answer 2 wrong\eAns \Ans0 answer 3 wrong\eAns \eChoices\end{answers}}