Correct Answer - C::D
![image](https://learnqa.s3.ap-south-1.amazonaws.com/images/16116689087466026538BBznDovchPXMTsv.png)
, `underset(hv)overset(Cl_(2))rarr3 "monochloro product"`
`HC-=C-overset(C-=CH)overset(|)(CH)-C-=CH overset(H_(2)//Ni)rarrH_(3)C-HC_(2)-overset(CH_(2)-CH_(3))overset(|)(CH)-CH_(2)-CH_(3)underset(hv)overset(Cl_(2))rarr 3 "monochloro product"`
Both structures give three monochloro structural isomeric products.