Final answer:
The effective summary of the 'Address to the Niagara Movement' should include key details about the movement's aim to end discrimination and fight for immediate political, economic, and social equality for African Americans, including universal suffrage and elimination of the convict lease system.
Step-by-step explanation:
The effective summary of the "Address to the Niagara Movement" should include key details that reflect the core objectives and principles of the movement. Members of the Niagara Movement sought to end discrimination and emphasized the importance of securing immediate political, economic, and social equality for African Americans. Among their demands were universal suffrage, compulsory education, and the elimination of the convict lease system. However, regarding the specific details posed in the question, the correct answers would be:
- Economic opportunities are expanding in Black communities: No
- Members of the Niagara Movement seek to end discrimination: Yes
- Members of the Niagara Movement are well educated: No (This detail, while possibly true, is not essential to the summary of principles and objectives)
- The American government is illegally suppressing Black Americans' voting rights: Yes
These details are pivotal in summarizing the essence of the movement, which laid the groundwork for the creation of the NAACP, and its focus on securing guaranteed rights and eliminating race prejudice.