Methane is gas that is found in small quantities in Earth's atmosphere. Methane is the simplest hydrocarbon, consisting of one carbon atom and four hydrogen atoms. It is a powerful greenhouse gas, flammable, and used as a fuel worldwide. Construct an explanation of how carbon and hydrogen combine to form methane. A) Nonmetal carbon shares valence electrons with each nonmetal hydrogen forming four covalent bonds. B) Carbon and hydrogen are nonmetals and they share their valence electrons to become ions and form ionic bonds C) Nonmetal carbon loses a valence electron and the nonmetal, hydrogen gains a valence electron to form an ionic bond. D) Hydrogen loses a valence electron to become a cation and carbon gains a valence electron to become an anion forming a covalent bond.