Answer:
The correct answer is option C, Graphite
Explanation:
The structure of graphite is a covalent structure in which one carbon atom is bonded to three other carbon atoms and that too through a covalent bond. Due to this arrangement there is one non bonded electron with each carbon atom which makes graphite a good conductor. The overall structure of graphite consists of several bonded set of carbon molecules (hexagonal structure) to form sheets of carbon which lie over each other. The layer of graphite slip over each other as they are bonded by weak forces and thus it is soft and slippery.
