Final answer:
Gauchos traditionally wear baggy pants known as bombachas, often tucked into boots and accessorized with wide-brimmed hats and belts with large buckles.
Step-by-step explanation:
The attire commonly worn by gauchos, who are the traditional cowboys of the South American pampas, specifically in countries like Argentina, Uruguay, and southern Brazil, includes a specific set of clothing items. Gauchos are known for wearing baggy pants called bombachas, which are sometimes tucked into boots, paired with wide-brimmed hats. These pants are often worn with belts adorned with large buckles. Contrary to some of the options provided in the question, gauchos do not typically wear items such as chaps and Levi's, derby hats, or bolas as part of their regular attire. Bolas, also known as boleadoras, are instead a tool consisting of cords with weights at the ends, used for capturing animals by entangling their legs.