Of the following, what was most effective in gaining national support for the civil rights movement?

In 1954, the civil rights movement gained momentum when the United States Supreme Court made segregation illegal in public schools in the case of Brown v. Board of Education.

Explanation:

he was able to speed up production of the processing of seeds

on february 25, 2004, at the time the president of united states of america george bush announced that he supports the constitutional amendment to ban the same-sex marriage. but the possibility was left that states can decide whether they allow civil unions.