Answer the following question given this paragraph: 

Metals are elements that are good conductors of electricity. They are the largest of the three classes of elements. In fact, most elements are metals. Look back at the modern periodic table ( Figure above ) in this chapter’s lesson "How Elements Are Organized. " Find the metals in the table. They are all the elements that are color-coded blue. Examples include sodium (Na), silver (Ag), and zinc (Zn).


Q: Metals are good conductors of what?

 Choices:

- light

- metabolism

- sound

- electricity

A:
electricity
