Jazz became very popular in 1920s because of upbeats sound in his music
Explanation:
Though the images arent clear, I can say that yes we can identify the music depending on the picture because, like during national anthem, all people stay still and sing right. or like, there will be something like that which is neccessary for the anthem and if it's a festival or any other, you'll know from what people are doing. dont you think so?
sorry that my explanation isn't good but I hope you understood what I meant to say.
good day^^
Answer:
A. To cut the pattern to the largest side.
