Ketoses Can Act as Reducing Sugars in Basic Solution Because

Multiple Choice

Ketoses can act as reducing sugars in basic solution because

A) their carbonyl groups can readily be oxidized just as in aldoses.
B) the large number of hydroxyl groups allows oxidation of the molecules.
C) the ketone is converted to an aldehyde by keto-enol tautomerization.
D) mutarotation makes the carbonyl group accessible to oxidizing agents.
E) none of the above