We should say informal leave taking expressions to theese people, except….

Jawaban:

B. The Principal

Penjelasan:

We Should Formal When We Meet The Principal

~answer~

we should say informal leave taking expressions to theese people, except….

a. childhood friends

b. the principal

c. classmates

d. cousins

explanation :

because ,

principal is older than us, so we should use formal word.

formal word is used to respect/polite to them

That's all

Hope it helps

Hope it helpsʕ •ᴥ•ʔ