Based on the periodic table shown above, elements in which of the following groups are the poorest conductors of electricity?

Metals are known to be excellent conductors of electricity, however some metals do not conduct electricity as well as gold, copper or sliver (examples of good conductors). Metals such as lead, mercury and alloys of iron, chromium, titanium and stainless steel do not conduct electricity as good as silver, copper and gold. It is also important to note that all gases do not conduct electricity at all due to the great amount of space between its electrons.

C) to ensure each new cell has an exact copy of the dna