Among the given halides, which one will give same product in both \[{{S}_{N}}1\] and \[{{S}_{N}}2\] reactions? (I) \[C{{H}_{3}}-\overset{C{{H}_{3}}}{\mathop{\overset{|}{\mathop{C}}\,}}\,H-C{{H}_{2}}-\underset{Br}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-C{{H}_{3}}\] (II) (III) (IV)\[C{{H}_{3}}-\underset{Et}{\mathop{\underset{|}{\mathop{C}}\,}}\,H-Br\]

• A. (III) only           
• B. (I) and (II)
• C. (III) and (IV)      
• D. (I), (III) and (IV)