Help answer this please ?

Which of these events related to the protestant reformationoccurred first in 1521?

Which statement best describes the relationship between the rule of law and democratic forms of government? o a. the rule of law ensures that leaders can only exercise the powers the people give them. b. the rule of law requires direct democracies to introduce representative government. o c. the rule of law allows elected officials to issue extremely harsh punishments for criminals. o d. the rule of law prevents democracies from growing too large to be efficiently governed.

Why is it important that dr. luther king jr. use non-violent protest to create social change?