This note is:
A. the note B
O
B. the note A
C. the note G
D. the note C

A

Explanation:

A good tip to remember is that each space spells out "F A C E" and each line is "E G B D F", which you could remember as "Every Good Boy Does Fine". I learned this back in elementary, and it seemed to stick with me!

a. symbolism

b. opinions

all of them

c. hidden messages

d. political statements