Which lists only metalloids? arsenic (as), sulfur (s), and polonium (po) antimony (sb), tellurium (te), and gallium(ga) boron (b), germanium (ge), and tellurium (te) polonium (po), aluminum (al), and silicon (si)

The answer option which correctly lists only metalloids is: B. antimony (Sb), tellurium (Te), and gallium (Ga).  

A metalloid refer to a chemical element that is typically intermediate between those of metals, non-metals and semiconductors.

This ultimately implies that, a metalloid has both physical and chemical properties that are a combination of those of metals, non-metals and/or semiconductors.

In Chemistry, some of the metalloids found in the periodic table are:

From the above, we can deduce that antimony (Sb), tellurium (Te), and gallium (Ga) are metalloids.

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bcde is the incorrect answer it is a