A seat is to be designed for a public bus for the adult Indian population. While designing, which option needs to be considered so that \textbf{MOST of the relevant category population can sit on it comfortably?}
Show Hint
For ergonomic design:
\begin{itemize}
\item Use 5\textsuperscript{th} percentile for reach,
\item Use 95\textsuperscript{th} percentile for clearance,
\item Use 50\textsuperscript{th} percentile for neutral dimensions.
\end{itemize}
Step 1: In ergonomic design for public seating, dimensions must accommodate the widest possible range of users.
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Step 2: General ergonomic principles state:
\begin{itemize}
\item Seat height should suit the \emph{average} user to avoid discomfort for both shorter and taller individuals,
\item Seat breadth should accommodate larger users to prevent crowding.
\end{itemize}
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Step 3: Applying percentile logic:
\begin{itemize}
\item Using the 50\textsuperscript{th percentile} for sitting height ensures suitability for the majority,
\item Using the 95\textsuperscript{th percentile} for hip breadth accommodates larger users while still being usable by smaller users.
\end{itemize}
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Step 4: Evaluating the options:
\begin{itemize}
\item Options using the 5\textsuperscript{th} percentile for breadth exclude many users,
\item B correctly balances average height with maximum breadth.
\end{itemize}
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Final Answer:
\[
\boxed{B}
\]
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