Answer: Option (b) is the correct answer.
Explanation:
A covalent bond is defined as the bond formed between the two atoms due to sharing of electrons.
A covalent bond is always formed between non-metals.
For example, carbon and sulfur are both non-metals and when they chemically combine together they form [tex]CS_{2}[/tex] which is a covalent compound.
Thus, we can conclude that out of the given options carbon and sulfur is the pair of elements that will form a covalent bond.
