Answer:
- B: Graphite is a good conductor of electricity.
Step-by-step explanation:
Graphite is an allotrope of carbon with a unique structure that allows it to conduct electricity due to the presence of delocalized electrons. These delocalized electrons can move freely within the layers of graphite, making it an excellent conductor. On the other hand, diamond, lamp black, and charcoal are not good conductors of electricity because they do not have the same delocalized electron arrangement as graphite.