Step 1: Concept
Electrolytes are substances that dissociate into ions in solution and conduct electricity. Non-electrolytes do not dissociate into ions.
Step 2: Meaning
Salts, acids, and bases are typically electrolytes. Organic compounds like sugars and alcohols are often non-electrolytes.
Step 3: Analysis
$NaCl, NaOH,$ and $CH_{3}COONa$ all produce ions ($Na^{+}, Cl^{-}, OH^{-}$) in water.
Step 4: Conclusion
Ethanol ($C_{2}H_{5}OH$) remains as molecules in water and does not conduct electricity, making it a non-electrolyte.
Final Answer: (D)