The 1963 Birmingham protest was successful in advancing the cause of civil rights for black Americans, while the 1962 Albany protest was not, because.....

a. King and his organization prepared for the Birmingham march much more carefully and learned from their earlier errors.
b. the leaders of Birmingham realized that the black demand for civil rights was just and they agreed to compromise and give their black citizens greater rights.
c. the governor of Alabama refused to support continued racial prejudice and forced the city officials in Birmingham to adopt equal rights.
d. the city leaders in Birmingham strongly resisted the demand for civil rights, using violence to resist the demand and the resulting publicity turned the entire country against them.