Various designs of an application screen are shown below. Identify the screen that \textbf{INCORRECTLY depicts functions of standard interface components.}
Show Hint
For UI design evaluation:
\begin{itemize}
\item Radio buttons are mutually exclusive,
\item Checkboxes are independent,
\item Mismatched control behavior indicates incorrect design.
\end{itemize}
Step 1: Review standard UI/UX conventions for common interface components:
\begin{itemize}
\item Radio buttons allow selection of \emph{one} option from a group,
\item Checkboxes allow \emph{multiple} independent selections,
\item Text fields are used for free-form input,
\item Action buttons should trigger a clear next step.
\end{itemize}
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Step 2: Examine each screen for correct usage of these components.
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Step 3:
\begin{itemize}
\item A: Correct use of radio buttons, checkboxes, and text input — valid.
\item B: Component choices and behaviors align with standard conventions — valid.
\item C: Proper distinction between optional actions and inputs — valid.
\item Option D: Uses interface components in a way that conflicts with standard functionality (incorrect selection behavior / control usage) — invalid.
\end{itemize}
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Final Answer:
\[
\boxed{D}
\]
\bigskip
