I believe the answer would be C if not then hopefully someone else can help.
I think that would be Jesus Christ
Answer:
a. 6 alphabets are there in music
b. 4 clefs we have in common use
Top left: B A G
top right: C A G E D
bottom left: B E A D
bottom right: E G G
The awnser is the 1500s I took the test
