Consider the following reaction \[{{H}_{3}}C-\underset{D}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{3}}+\overset{\bullet }{\mathop{B}}\,r\xrightarrow{{}}'X'+HBr\] Identify the structure of the major product 'X'

• A. \[{{H}_{3}}C-\underset{D}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\overset{\bullet }{\mathop{C}}\,{{H}_{2}}\]
• B. \[{{H}_{3}}C-\underset{D}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-\overset{\bullet }{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,-\overset{{}}{\mathop{C}}\,{{H}_{2}}\]
• C. \[{{H}_{3}}C-\overset{\bullet }{\mathop{\underset{D}{\mathop{\underset{|}{\mathop{C}}\,}}\,}}\,-\overset{{}}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,}}\,-\overset{{}}{\mathop{C}}\,{{H}_{3}}\]
• D. \[{{H}_{3}}C-\overset{\bullet }{\mathop{CH}}\,-\overset{{}}{\mathop{\underset{C{{H}_{3}}}{\mathop{\underset{|}{\mathop{CH}}\,}}\,}}\,-\overset{{}}{\mathop{C}}\,{{H}_{3}}\]