Which piece of legislation signed by Lyndon Johnson brought an end to barriers preventing minorities from participating in elections? A. Medicare B. War on Poverty C. Immigration Act D. Voting Rights Act E. Civil Rights Act

C. Immigration Act

D Voting Rights Act because it was signed into law by President Lyndon B. Johnson, aimed to overcome legal barriers at the state and local levels that prevented African Americans from exercising their right to vote as guaranteed under the 15th Amendment to the U. S. Constitution.