A chemist isolated a compound A with molecular formula `C_(7)H_(13) Br`. A undergoes very fast `S_(N)1` reaction. Spectroscopic evidence indicated that compound A has the following structural characteristics.
. It contains fnive `sp_(3)` hybridised carbon atoms. Among those five `SP^(3 )` carbon atoms are three methyl groups, one `CH_(2)` group and one CH group.
. It also contains two `SP_(2)`-hybridised carbon atoms . Also there is only one hydrogen atom attched to `sp^(2)` carbons.
. The compound contains a total of six allylic hydrogen atoms.
. The carbon atom that holds the Br has one H attached to it.
When compound A reacts with boiling water , it undergoes an `S_(N)1` reaction and produces. two principal products B and C . Both B and C are alcohols with their molecular formula `C_(7)H_(14)O`. Among the two alcohols, B has the --OH group attached to an `sP_(3)` carbon atom that has no H atoms bonded to it .
If the starting compound A is brominated in gas phase in presence of a Lewis acid catalys, a tribromide would result from addition of `Br_(2)` to `C=C` . How many different structures of stereo isomers isomers can be drawn for this tribromide ?

Options

A. 2
B. 4
C. 8
D. None of these

Answer

B