单选题 in its 14 years of ______ the European Union has earned the scorn of its citizens and skepticism from the United States.
A. endurance B. emergence C. existence D. eminence

【正确答案】 C

【答案解析】本题考点为名词的上下文语义。A意为“忍耐”，B意为“浮现”，C意为“存在”，D意为“崇高”。根据上下文，选项C为正确答案。