She showed the visitors around the museum, the construction had taken more than three year

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A. for which
B. with which
(答案→)C. of which
D. to which
解析：C【命题动向】考查非限制性定语从句。
解析一：介词+关系代词引导因定语从句。the construction of which表示“博物馆的建设”。
解析二：本题考查定语从句。据题意“她带领游客参观博物馆，这个博物馆的建造工作历时三年多”；of表示…的，Which指代先行词construction。the construction of which引导的非限定语从句，故选C。