Multiple choice Which best describes the significance of Rosa Parks? led the fight to ratify the 19th Amendment her refusal to give up a seat launched a bus boycott campaigned to stop the Equal Rights Amendment spearheaded the "Just Say No" campaign Reveal answer Fill a bubble to check yourself B Correct answer Explanation Rosa Parks' refusal to surrender her seat on a Montgomery bus in 1955 served as the catalyst for the Montgomery Bus Boycott.