Answer:
A. a general overview, details about Ms. Parks' influence on the Montgomery Bus Boycott, and results of the Montgomery Bus Boycott and the Civil Rights Movement
Step-by-step explanation:
From the text, the author first of gave a general overview of the Montgomery Bus Boycott and then went further to introduce Ms. Parker; giving details about her influence and activities on the Montgomery Bus Boycott. The author further gives details of the result of the Montgomery Bus Boycott and the Civil Rights Movement led by Dr. Martin Luther King Jr.