Which of the following instruments is NOT part of the wind instruments in "Carnival of the Animals"?

The viola is classified as a string instrument, rather than a wind instrument. In "Carnival of the Animals" by Camille Saint-Saëns, the instrumentation features a range of wind instruments, including the flute, clarinet, and piccolo, which produce sound by the action of air. The flute and piccolo are often made from metal and create sound through the vibration of air across an opening, while the clarinet uses a single reed that vibrates to produce sound. In contrast, the viola, being part of the violin family, generates sound through the vibration of its strings, which are typically bowed or plucked. Therefore, it stands apart from the wind instruments in this particular composition.