Margaret Comes to Work in Clothes Highly Reflective of the National

Margaret comes to work in clothes highly reflective of the national origin of her ancestors, and which also happen to violate the dress code of the White City Dairy. She is told to return home, and change into clothing that comports with the dress code.

A) Margaret has a claim under Title VII for national origin discrimination because she only wears outfits reflective of the national origin of her ancestors on holidays.
B) White City can defend the dress code if customers or co-workers are "uncomfortable" with how Margaret looks when she wears those clothes.
C) White City can defend the dress code if Margaret's national heritage outfit poses a safety hazard.
D) White City can defend the dress code if it allows other employees to dress casually at work.