Which lists only metalloids?

Question

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)

Answer 1

The list that only contains metalloids is:

boron (B), germanium (Ge), and tellurium (Te)

Metalloids are elements that have properties intermediate between metals and nonmetals, and the common metalloids include boron, silicon, germanium, arsenic, antimony, tellurium, and polonium.