Which row correctly gives the structures and uses of diamond and graphite?
- Adiamond has a giant covalent structure; diamond is used to make electrodes
- Bdiamond has a simple covalent structure; diamond is used to make cutting tools
- Cgraphite has a giant covalent structure; graphite is used as a lubricant
- Dgraphite has a simple covalent structure; graphite is used to make cutting tools