In Kharasch effect; reaction follows

 is

 is

 Compound $\overline{)\mathrm{A}},\overline{)\mathrm{B}}$ and $\overline{)\mathrm{C}}$ are respectively

 Which one is not $\overline{)\mathrm{A}}, \overline{)\mathrm{B}}, \overline{)\mathrm{C}}$?

 $\overline{)\mathrm{A}}, \overline{)\mathrm{B}}$ and $\overline{)\mathrm{C}}$ can be