Which elements do bluegrass, country, and folk music all have in common? a. Songs have complex chord changes and structures.

b. They use similar instruments.

c. Cecil Sharp discovered all three forms.

d. They have their roots in the traditional music of the Rocky Mountains.

The region of the united states where beef and hog production is prevalent is the midwestthere are 12 states in this area including  illinois,  indiana,  iowa,  kansas,  michigan,  minnesota,  missouri,nebraska,  north dakota,  ohio,  south dakota, and  wisconsin. all of these states are known for their meat and such products.