Who is responsible for popularizing french cuisines and techniques in the us?

The correct answer is Julia Child

She was famous for appearing on many cooking shows and writing cookbooks, mostly the famous Mastering the art of French Cuisine that was instrumental in bringing the French way of cooking to the United States. This was much more recent than it would normally be since she died 2004.

Protecting and assisting  u.s. citizens  living or traveling abroad; assisting u.s.  businesses  in the international marketplace; coordinating and providing support for international activities of other u.s. agencies (local, state, or federal government), official visits overseas and at home, and other diplomatic efforts.keeping the public informed about u.s. foreign policy and relations with other countries and providing feedback from the public to administration officials.providing  automobile registration  for non-diplomatic staff vehicles and the vehicles of diplomats of foreign countries having  diplomatic immunity  in the united states