Explanation:
as customer or client you may have once been to a restaurant that caries about it's client where you saw a waiter being fired because he had untidy hairstyle
I'd go with B - Article. There are hundreds of good examples for the answer being B. For example, "a book" ('a' is an article - 'book' is a noun), "an apple" ('an' article - 'book' noun). Those are just the simple ones.
Answer:
Use "she"
Explanation:
Class Teacher of class-4 is very good ❌
She is very good ✅
Anxious and anticipatory mood
I believe it is to express so D