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Anton created a chart listing different types of materials.

Types of Materials
\begin{tabular}{|l|l|}
\hline \multicolumn{1}{|c|}{ Type } & \multicolumn{1}{c|}{ Example } \\
\hline conductor & silver \\
\hline insulator & X \\
\hline semiconductor & Y \\
\hline superconductor & mercury \\
\hline
\end{tabular}

Which best completes the chart?

A. X: copper, Y: glass
B. X: rubber, Y: copper
C. X: paper, Y: silicon
D. X: silicon, Y: glass



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