A.
design A because it uses a grid or framework
String, also known as a Guhzeng, the instrument is plucked and strings are stretched to acheive different pitch.
A because beethoven took off the piano keys and used the floor to listen the music vibrate because he was going deaf.
Answer:
A. Being dependent upon others for their needs
Explanation:
Answer:
I believe it's participant observation.
Explanation: