Henri Runs a French Restaurant

Henri runs a French restaurant. He wants his diners to have an authentic culinary experience. Henri can avoid a claim of national origin discrimination and still screen his wait staff by requiring that

A) an applicant speak French well, or have knowledge of French cuisine.
B) an applicant have a French passport.
C) an applicant see all 10 Pink Panther films.
D) an applicant have at least one cousin, parent or grandparent who comes from France.