Answer:
The correct option is b
Step-by-step explanation:
One of the common properties of metals is there ability to conduct heat and electricity. This conductivity of electricity is because of the atomic structure of metals which allows electricity to pass/flow through them. Metals have one, two or three valence electrons in there outermost shell, these electrons carry electric charges and move freely within the atomic molecule unlike non-metals that have an almost filled/filled outermost shell which prevents free movement of electrons within the atom.