The correct answer is C. Fastidious.
A fastidious person is one who is very particular or demanding, especially about minor details. They may be difficult to please, and they may often be critical of others.
A cosmopolitan person is one who is familiar with or at home in many different countries or cultures. They may be well-traveled and have a broad range of interests.
A frightening person is one who is capable of causing fear or terror. They may be dangerous or threatening, and they may make others feel unsafe.
A feminist is a person who believes in the social, political, and economic equality of the sexes. They may advocate for women’s rights, and they may work to challenge gender inequality.
In conclusion, the correct answer is C. Fastidious.