32Organic Reaction Types MechanismsMedium1 markWhich organic reaction has a nucleophilic substitution mechanism?ACH3CH2Br+NaOH→CH3CH2OH+NaBrBCH3CH2Br+NaOH→CH2CH2+NaBr+H2OCC2H4+HCl→C2H5ClDC2H6+Cl2→C2H5Cl+HClGrade answerSolutionGrading criteria