$25 \ g$ of an unknown hydrocarbon upon burning produces $88 \ g$ of $CO_2$ and $9 \ g$ of $H_2O$. This unknown hydrocarbon contains:
- A$24 \ g$ of carbon and $1 \ g$ of hydrogen
- B$22 \ g$ of carbon and $3 \ g$ of hydrogen
- C$18 \ g$ of carbon and $7 \ g$ of hydrogen
- D$20 \ g$ of carbon and $5 \ g$ of hydrogen
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