Which spanner from the options will fit the maximum number of nuts shown on the left?
Show Hint
For tool–fit problems:
\begin{itemize}
\item Compare effective jaw openings, not handle size,
\item Consider how many sizes can be accommodated,
\item The most versatile shape fits the most cases.
\end{itemize}
Step 1: Observe the nuts on the left. They are hexagonal but vary in size, meaning the best spanner is the one whose jaw opening can accommodate the widest range of nut sizes.
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Step 2: Compare the jaw shapes and openings of the spanners:
\begin{itemize}
\item Some spanners have narrow openings suited only for small nuts,
\item Some have wide openings but limited grip range,
\item One spanner has a balanced jaw geometry that can engage both small and large hexagonal nuts.
\end{itemize}
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Step 3:
\begin{itemize}
\item A: Fits only a limited range of nut sizes.
\item B: Jaw opening is too restrictive.
\item C: Jaw geometry allows engagement with the maximum variety of nut sizes — valid.
\item Option D: Misses several intermediate nut sizes.
\end{itemize}
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Final Answer:
\[
\boxed{C}
\]
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