Question

PLEASE HELP!!!!!!!!!

Which sentence uses FORMAL language?
A) I hated studying grammar when I was in school.
B) Have I convinced you that the study of grammar is important and well worth your effort?
C) You are probably wondering how all of the rules and their exceptions will be remembered by you.
D) English is a very tricky language loaded with many rules and just as many exceptions to those rules.

Answer 1

for USA test prep the answer is D

Answer 2

Formal language is also called "proper language" because it is the type of language you would use when first meeting someone or giving a speech at a high class place so the correct answer is:

B) Have I convinced you that the study of grammar is important and well worth your effort?