[求助] PP-1-4 20

kuuiytt

Subjects of Cecilia Beaux's painting included prominent figures in government, the arts, and fiancial, but her strongest works are portraits of family members and friends.

答案是c，但b的“financial”明显跟前面的名词形式不一致，到底答案怎么解释呢？

migei

具体的答案及选项是什么？