The diagram in the image attached below can be completed with an <u>increase</u> in the membership and political power of: C. the congress of racial equality.

Migration refers to the movement of a group of people from one geographical region (location) to another geographical destination, in search of better social amenities, living conditions, and work.

In the United States of America, there was an increase (rise) racial tension due to the following:

Migration of African-Americans to cities.

Rise of nativism and religious fundamentalism among the people.

Consequently, the congress of racial equality (CORE) was established in 1942 by <u>James Farmer</u> to serve as an African-American civil rights organization (interracial organization).

In conclusion, the congress of racial equality (CORE) played a pivotal role in the civil rights movement by promoting the use of non-violent tactics to help African-Americans;

1. Secure equal rights with the Whites.

2. End racial discriminations in the United States of America.

Read more on the congress of racial equality (CORE) here: brainly.com/question/10908940