A Grignard regane t`(A0` and a haloalkene `(B)` react together to give `(C)` compound `(C)` on heating with `KOH` yields a mixture of two geometrical isomers, `(D)` and `(E)` of which `(D)` predominates. `(C)` gives `1-` bromo `3-` phenyl propane on reaction with `Hbr` in the presence of a peroxide. Give teh structures of `(A), (B)`, and `(C)` and the configuratins of `(D)` and `(E)`.

Explanation