What is a similarity in how musical styles developed in Equatorial Guinea and the United States? a. Both countries have musical styles that originated from celebrated holidays, such as National Day in Equatorial Guinea and Independence Day in the United States.

b. Both countries have musical styles designed for certain performers, such as folk bands in Equatorial Guinea and orchestras in the United States.

c. Both countries have musical styles that originated from ritual dances, such as the balélé in Equatorial Guinea and the grass dance in the United States.

d. Both countries have musical styles influenced by ethnic groups, such as the Fang in Equatorial Guinea and African-Americans in the United States.