Final answer:
The trumpet produces higher-pitched sounds than the trombone because it has less tubing, leading to shorter wavelengths and higher frequencies of sound.
Step-by-step explanation:
In brass instruments, such as the trumpet and the trombone, the length of the tubing is directly related to the pitch that the instrument can produce. Given that the trumpet has less tubing than the trombone, it will produce sounds with shorter wavelengths, which correspond to higher frequencies, and consequently, higher-pitched sounds. Thus, the answer to the question is: A) The trumpet produces higher-pitched sounds.
This phenomenon can be explained by the way wind instruments are designed. Long tubing, as in a trombone, can lower the pitch, while short tubing, generally found in trumpets, leads to a higher pitch. This relationship is due to the physics of sound waves and how they resonate within the tube of the instrument.