Write the chemical equation to show what happens when methane is treated with chlorine in the presence of sunlight?
a) ( CH₄ + Cl₂ → CHCl₃ + HCl )
b) ( CH₄ + Cl₂ → CHCl₂ + HCl )
c) ( CH₄ + Cl₂ → CCl₄ + HCl )
d) ( CH₄ + Cl₂ → CCl₃ + HCl )