Correct Option: C

The trumpet is the musical instrument with the highest register in the brass family. Trumpets are among the oldest musical instruments, dating back to at least 1500 BC. They are played by blowing air through closed lips, producing a “buzzing” sound that starts a standing wave vibration in the air column inside the instrument. As with all brass instruments, sound is produced by blowing air through closed lips, producing a “buzzing” sound into the mouthpiece and starting a standing wave vibration in the air column inside the trumpet.