Answer:
Option "A" (the very first one) is an A Major scale.
Explanation:
A Major has three sharps in its key signature: F, C and G.
I suggest you learn your way around the key signatures, that way you'll be able to recognize any scale at any moment, it doesn't take long and it's very much worth the effort.
Answer: aww your so sweet
Explanation: The greatest glory in living lies not in never falling, but in rising every time we fall. -Nelson Mandela
Some positive affects music can give to you is it can make you happy or persistent in something, but music can also be distracting sometimes and it could also make you sad.
sorry if i did this completely wrong
im pretty sure this question should asked in the science department.