Which of the following series of steps would most efficiently synthesize the target molecule from the...

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Which of the following series of steps would most efficiently synthesize the target molecule from the given carbonyl compound

о г 2 3 excess НО. ОН А. Но* НО* Li 1 3 N НО. excess ОН НО* НО* Д. 1 2 3 excess НО ОН H30* MgBr H30*

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