I think c but not so sure
I think it’s either “related correspondence” or “materials too bulky to include in the main text”
Answer:
No, that is not normal.
Explanation:
You could either have Tonsillitis or something else, worse or not. Tonsillitis is usually caused by a viral infection but can be from a bacterial infection.
A is correct! It is a true fact as well! Mark if correct!