The answer is either repetition or rythm. Most likely repetition
The key is in D major which means your do will be D (first space under the staff) I will give you the first measure:
Do Do Re Mi
Answer:
“You are the sun, Grandma, you are the sun in my life.” – Kitty Tsui
“It’s such a grand thing to be a mother of a mother — that’s why the world calls her grandmother.” – Author Unknown
Explanation:
The answer is b) musicians because they are the one that preform in public!
