单选题 Finally this theory is widely understood and accepted the world over, i.e. it has a ______; and is therefore a good basis for discussion of an ethical problem.
A. particularity B. unilateralism C. commonality D. cosmopolitan

【正确答案】 C

【答案解析】[解析] C选项：commonality意为“共性，共同特征”，如：The application demonstrates that this component possesses favorable commonality and flexibility．(应用实例表明该组件具有良好的通用性和灵活性。)句意：这个新的理论最终被全世界广泛理解并接受，即该理论具有通用性。故选C。
A选项：particularity特性；B选项：unilateralism单方，片面；D选项：cosmopolitan世界性的。