Find the empirical formula of an organic compound if it contains $18.6 \% C$,$1.55 \% H$,and $55.04 \% Cl$. (Atomic masses: $C=12$,$H=1$,$Cl=35.5$,$O=16$)
- A$C_{2}H_{2}Cl_{2}O_{2}$
- B$CH_{2}ClO$
- C$CHClO$
- D$CHClO_{2}$
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