Identify which carbonyl compound and the reducing agent can be used to synthesize benzyl alcohol.

Reaction showing benzaldehyde with BH3 and H2O2 yielding benzyl alcohol.

Reaction of benzaldehyde with KMnO4 producing benzyl alcohol.

Benzaldehyde reduced to benzyl alcohol using LiAlH4 or NaBH4.

Benzaldehyde converted to benzyl alcohol using H2Cr2O4.