How is carnival an example of cultural exchange in South America A it involves parades and costumed dancer B it combines African dance in European religion C it involves the Christian practice of fasting D it attracts millions of participants to Brazil cities

Carnival in South America, particularly in Brazil, is an example of cultural exchange primarily because **B it combines African dance and European religion**. The festival showcases a blend of African, Indigenous, and European cultural elements, reflecting the diverse influences that have shaped Brazilian culture. This amalgamation is evident in the music, dance styles, and various religious practices celebrated during Carnival, highlighting the historical interactions between these different cultural groups.