In an E2 elimination reaction, the leaving group and the hydrogen atom must be anti-coplanar for this concerted reaction to occur. Identify which of the following structures has the hydrogen atom and the leaving group aligned anti-coplanar. Br CH3 Ph. H Ph. Ph Ph HU Br HU Ph -H = H I- A) | Br Br B) II C) III 99 Ph. H Ph CH3 OH

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