The major product of the following reaction is:\({\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}\mathop {{\rm{CH}}}\limits_{\begin{array}{*{20}{c}} {|{\rm{\;}}}\\ {{\rm{Br}}} \end{array}} - \mathop {{\rm{C}}{{\rm{H}}_2}}\limits_{\begin{array}{*{20}{c}} {|{\rm{\;}}}\\ {{\rm{Br\;}}} \end{array}} \mathop {\xrightarrow{{{\rm{\;}}\left( {\rm{i}} \right){\rm{KOH\;alc}}.}{\rm{\;}}} }\limits_{\left( {{\rm{ii}}} \right){\rm{NaN}}{{\rm{H}}_2}{\rm{\;in\;liq}}.{\rm{N}}{{\rm{H}}_3}} {\rm{\;}}\)

• A. \({\rm{C}}{{\rm{H}}_3}{\rm{C}}{{\rm{H}}_2}\mathop {{\rm{CH}}}\limits_{\begin{array}{*{20}{c}} {|{\rm{\;}}}\\ {N{H_3}} \end{array}} - \mathop {{\rm{C}}{{\rm{H}}_2}}\limits_{\begin{array}{*{20}{c}} {|{\rm{\;}}}\\ {N{H_3}} \end{array}}\)
• B. CH3CH=CHCH2NH2
• C. CH3CH=C=CH2
• D. CH3CH2C≡CH