Please clarify your question so we may provide appropriate answers.
B. The entrance way (sorry if I am wrong)
The answer is by rejecting papal authority over the community of believers.
Martin Luther wrote his 95 theses criticizing the Catholic Church and their practices. One of the biggest complaints he had was the church's use of indulgences. This is when an individual could pay the church in order to be forgiven for their sins. This is why he rejected the authority of the pope over the citizens, as he believed the corruption within the church was unethical.
Answer: Gunboat Diplomacy.
Explanation: This is when a nation uses the threat of force or conspicuous displays of firepower to have influence in foreign policy, and it's called "Gunboat Diplomacy". The president Roosevelt used this tactic as a way to secure Panama's independence from Colombia; in a way of exchange the United States was able to secure access to what would become the Panama Canal.
Hope this helps.
