Country swing music developed in the 1920s and 1930s in what area of the united states?

Country swing music developed in Texas, Oklahoma, Arkansas, and New Mexico along a path known as the circuit, which connected travelling musicians from cities such as Dallas and Tulsa to the great jazz center of Kansas City. When in and around Kansas City musicians would learn and play the emerging swing style. As they went out on the circuit, however, audiences demanded a different sound, and so country swing was born.

The answer is crop yield.

The answer would be option a , b, and c.