Why do historians know that the Mask of Agamemnon is NOT actually from the famed Mycenaean king? 1.)The mask was made 300 years before his death
2.)The mask was made out of gold
3.)The mask was made using the repoussé technique
4.)The mask was not found in Greece

I would say 3 but if I'm wrong, I'm sorry

Explanation:

earliest

neumes above text

neumes

colored lines

neumes

4-line staff

f, c, or g clef

notes on 5-line staff with clef

mensuration (longas and breves)

time signature (perfect or half circle)

most recent

notes on 5-line staff

modern clefs

modern note values (whole, half, quarter, and so on)

modern time signature

italian words and abbreviations for dynamics and tempo

staccato, slurs, and so on