African people use some artworks to solve problems, such as settling disputes. Which one is an example of such art? A. a nkisi statue B. a tyi wara headdress C. a Nok sculpture

What you’re looking for is called a “nkisi sculpture.” They are sculptures given as an oath, commonly to settle disputes. They are similar to what we now consider a “peace offering” or a truce.

Collar fitting and sleeve length makes the most sense