IUPAC name of the compound \[C{{H}_{3}}-C{{H}_{2}}-\overset{C{{H}_{3}}}{\mathop{\overset{|\,\,\,\,}{\mathop{CH}}\,}}\,-C{{H}_{2}}-\underset{\underset{\underset{\overset{\underset{\begin{matrix} C{{H}_{3}} & C{{H}_{3}}\,\,\,\\ \end{matrix}}{\mathop{\hat{\ }}}\,}{\mathop{{}}}\,}{\mathop{CH\,\,\,\,\,\,\,\,}}\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{CH\,\,\,-\,\,C{{H}_{2}}-C{{H}_{2}}C{{H}_{3}}}}\,\] [Orissa JEE 2003]

• A. 4-isopropyl 1-6-methyl octane
• B. 3- methyl-5-(1?-methylethyl) octane
• C. 3-methyl-5-isopropyl octane
• D. 6-methyl-4-(1?methylethyl) octane