Which important document was written at the start of the war of independence
1. the constitution
2. the declaration of independence
3. the articles of confederation

2. The declaration of independence

Explanation:

The Declaration of Independence is the document in the history of the United States that was official act taken by all 13 American colonies in declaring independence from British rule. People in the colonies were unhappy that they did not have a say in their government and still had to pay taxes.

explanation:

an oligopoly is a term used to clarify the structure of a particular market, industry, or organization. a market is considered oligopolistic or amazingly focused when it is shared between a few companies.