Thomas Paine's main purpose in writing his pamphlets was to: scare Britain into giving the American colonies their freedom.
declare that America was a free country and no longer subject to British laws.
argue that fighting for American independence from Britain was the only long-term solution for the troubles in the colonies.
All of the choices are correct.

All of the choices are correct.

Explanation:

Thomas Paine was one of the leading figures in the liberation of the United States from Britain. He was a thinker of liberal ideology who through his works, especially The Common Sense, written in 1776, urged the American colonists to rebel against the British rule that existed until then in the Thirteen Colonies.

Paine identified the colonial relationship between America and Great Britain as the main problem of the Thirteen Colonies, that depended on the metropolis for most of the economic and political decisions that were made in their territory, thus limiting the freedom and opportunities of the colonists to develop a dignified life in their territories. Thus, through his pamphlets he urged the colonists to rise up against the colonial government and fight for the independence of the nation.

c. a group of tribes that formed a confederacy

a. "to practice" is the best phrase to complete the sentence.

explanation:

during the summer, she likes to practice her soccer skills so that she is ready to play in the fall.

(note that : all the other options "the practicing of", "practice for" and "to do a practice on" are inappropriate as they make the sentence grammatically incorrect.)