The correct option is A CH3COOH
Potassium permanganate is a strong oxidising agent. When ethanol (CH3CH2OH) is heated in an alkaline solution of KMnO4, it donates nascent oxygen and hence, the compound is converted into ethanoic acid (CH3COOH).
CH3CH2OH(aq)+2[O](g)alkaline KMnO4−−−−−−−−−−→H2O+CH3COOH(aq)