An organic substance $(80 \ g)$ on analysis was found to contain $C = 24 \ g$,$H = 4 \ g$,and $O = 32 \ g$. What is its empirical formula?
- A$C_2H_2O_2$
- B$C_2H_2O$
- C$CH_2O_2$
- D$CH_2O$
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