Answer:
The correct answer is B. Metals.
Step-by-step explanation:
Metals, together with semi-metals and non-metals, form three main groups of chemical elements. The separation is performed with respect to the binding and ionization properties of the elements. Metals are characterized as electropositive, they tend to transfer valence electrons and form monoatomic cations. In industry, the term metals is also generally used for metallic materials - alloys of metals or metals with non-metals.