\documentclass{beamer}
\usetheme{Berkeley}
\usepackage{tasks}
\begin{document}

\begin{frame}
\transwipe
1.Which one you want to choose?
\begin{tasks}[counter-format=tsk[A].,debug=true](4)
\task A
\task B
\task C
\task D
\end{tasks}
\end{frame}

\end{document}