Propene when heated with chlorine at about \[{{500}^{o}}C\] forms [MP PET 1997]

• A. \[C{{H}_{2}}Cl.CH=C{{H}_{2}}\]
• B. \[C{{H}_{3}}.CHCl.C{{H}_{2}}Cl\]
• C. \[C{{H}_{2}}Cl.CHCl.C{{H}_{2}}Cl\]
• D. All the three