Various plants contain reductases that are able to reduce carbonyl compounds. In particular, carrots often give good results; they contain NADH that can act as a chiral reductant and selectively reduce ketones to a specific enantiomer of the alcohol product. By name or number, identify all of the following four molecules that could be reduced by carrots to afford a chiral alcohol: 1) Acetone 2) Ethyl acetate 3) Acetophenone 4) Acetaldehyde