I'd say D because she'll organize her thoughts of why this is her favorite holiday. It helps her prepare for what she needs to write and even put evidence if needed.
Hope that helped! <3
Atomic mass= 28
Atomic number= 13
This implies,
No. of neutrons= 28-13= 15
HOPE IT HELPS
I think it is A: It makes clear to the reader that the narrator is making an ironic statement.