How to start an introduction for a position paper

Need the answer asap! read the sentence from the declaration of independence. which idea does this sentence best to develop ? that whenever any form of government becomes destructive of those ends, it is the right of the people to alter or abolish it, and to institute new government a) governments ultimately have the power to determine what rights the people have. b) revolting against the government should not be taken lightly. c) the colonists should seperate from great britain and create their own government. d) it is self evident that people have inalienable rights

The cat sits on a tin roof. the sentence above uses the verb mood in the a. subjunctive. b. conditional. c. indicative. d. imperative.

Which of the number is main idea? i need this quick.