Presumably he was rather busy as Commander-in-Chief of the Continental Army, a position to which he was appointed in June, 1775. The fighting was underway well before the Declaration of Independence was signed in July (or August, or November, depending on who you ask) of 1776. The battles of Lexington and Concord in April, 1775 are usually considered to mark the beginning of the war.
The correct option is this: LEYDEN BELIEVED THE GOAL OF THE REFORMATION WAS TO ABOLISH THE CATHOLIC CHURCH.
From the passage given above, it can be seen that, when Leyden was mentioning the list of things that should be done away with, he mentioned catholic church as one of them. Thus, he believed that catholic church should be abolished.
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.