C. Direction
Hope this help.
It is defined as that force necessary to provide a mass of one kilogram with an acceleration of one metre per second per second. One newton is equal to a force of 100,000 dynes in the centimetre-gram-second (CGS) system, or a force of about 0.2248 pound in the foot-pound-second (English, or customary) system.
In a stringed musical instrument, the part that vibrates in resonance with the sound waves produced by the strings is called the sounding board. Hope this helped ;)
