What is the best choice of reagent(s) to perform the following transformation? A)H₂/Lindlar catalyst B)Na/NH₃ C)(sia)₂BH; followed by H₂O₂, NaOH D)BH₃; followed by H₂O₂, NaOH

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The presence of a triple bond in the starting material suggests that an addition reaction is required. The reagents (sia)₂BH and H₂O₂ are used to convert the triple bond to a double bond (by syn addition of BH3, followed by oxidation with NaOH). The resulting double bond is then converted to an alcohol using NaOH. Choice A is incorrect because it performs partial hydrogenation of the triple bond to a double bond, which is not the desired transformation. Choice B is incorrect because Na alone is not sufficient to perform the necessary addition reaction. Choice D is incorrect because B2H6 does not perform the desired syn addition, and the subsequent steps are the same as in choice C.

What Is the Best Choice of Reagent(s) to Perform the Following