The answer is C. Au revoir! À bientôt! This is because the sentence "à bientôt "means "see you soon." This is more suited to the occasion than "à plus tard", which means "see you later", and "à demain", which means "see you tomorrow", as well as just plain "au revoir", which means goodbye.
May 17th because it is may day
Ete je regarde Netflix.
Non, Je non suis espagnol.
Je toast.
J’habite en California.
