Correct Answer: (c) Because of free electrons
Solution: Because of free electrons is the reason why metals conduct electricity. Metals have a sea of delocalized or free electrons that are not bound to a specific atom and can move freely throughout the metallic lattice. When a voltage is applied across a metal, these free electrons can carry the electrical charge, resulting in electrical conductivity. The other options are incorrect: low melting point, high tensile strength, and high atomic density are not the primary reasons for electrical conductivity in metals.
