`R-X+Mgoverset(Ether,Delta)rarroverset(delta-)R-overset(delta+)Mg-X` Grignard reagents may be prepared from `1^(@) , 2^(@)" and "3^(@)` halides as well as from vinayl and aryl halide. Vicinal dihalide and those halide which contain acidic tail do not form Grignard reagent.
Which of the following compounds can form Grignard reagent on reaction with Mg//Ether?

Options

A.
B.
C.
D.

Answer

C, D