Answer: A, B
Benzaldehyde gives toluene, which hot KMnOX4 oxidises to benzoic acid. Butan-2-one undergoes the haloform reaction to propanoic acid. NaBHX4 gives only the alcohol, 1-phenylethan-1-ol. CX6HX5COCHX2CHX3 is not a methyl ketone and does not give the haloform reaction.