`overset(Br)overset(|)CH_(2)-Ch=CH-overset(Br)overset(|)CH_(2) overset(Zn("dust"))to(A)`
above reaction is an example of 1,4- elimination , predict the product .
A. `CH_(3)-CH=C=CH_(2)`
B. `CH_(3)-CH-=C=CH_(2)`
C. `CH_(3)-CH=C-=CH_(2)`
D. `H_(2)O=Ch-CH=CH_(2)`