单选题 The eldest son ______ all the family members to discuss how to celebrate the 50th wedding anniversary of their parents.
A. clustered B. resembled C. assembled D. rendered

【正确答案】 C
【答案解析】本题考的是动词与宾语名词的上下文搭配。assemble集合，聚集，召集，根据题意，选项C为正确答案。