The name of the historic campaign is The Montgomery Bus Boycott.
I believe the answer is C. It would have the most economic effect.
Oliver Cromwell was born on April 25 1599 in a place called Huntingdon. He died in the year 1658 as Lord Protector and his life, motives, actions and ambitions have been the subject of a scholar investigation. Cromwell is very important as one of the key figures in one of the most problematic times in the British history.