Answer: a. Civil disobedience
Step-by-step explanation:
Civil disobedience is the refusal of the citizen(s) of obeying laws, rules, and regulations set by the government. Civil disobedience is also known as a peaceful protest carried out by the masses against the wishes of the government; where every sector or most sector of the government is closed for a group of people to speak out against some things, seen as ills in the society.
This is what occurred in 1963