Which of the following pair of the species has the same percentage of carbon [BHU 1999]

• A. \[C{{H}_{3}}-C{{H}_{2}}-\underset{\,\,C{{H}_{2}}C{{H}_{3}}\,\,\,\,\,}{\mathop{\underset{\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}{\overset{\overset{\,C{{H}_{3}}C{{H}_{2}}\,\,\,\,}{\mathop{\,\,|\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,}}\,}{\mathop{C\,\,\,\,\,\,\,\,-\,\,\,\,\,\,}}}\,}}\,\overset{\overset{C{{H}_{3}}}{\mathop{|\,\,\,\,\,\,}}\,\,\,\,\,\,\,}{\mathop{CH\,-\,}}\,C{{H}_{2}}-{{(C{{H}_{2}})}_{2}}-C{{H}_{3}}\] and \[{{C}_{2}}{{H}_{5}}OH\]
• B. \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] and \[{{C}_{12}}{{H}_{22}}{{O}_{11}}\]
• C. \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\] and \[{{C}_{12}}{{O}_{22}}{{O}_{11}}\]
• D. \[{{C}_{12}}{{O}_{22}}{{O}_{11}}\] and \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\]