For this assignment, you will need to choose a Fortune 100 company that is publicly traded in the United States. Here are some places that you may find a company:
Finasko - Fortune 100 Companies List
Investopedia - Fortune 100 List
A few other ways to make sure that the company is U.S.-based and company traded is to:
Knowing the ticker symbol of a company is important because you will be using that ticker symbol to research the company. A Ticker Symbol is a unique identifier for a publicly traded company. You can find a company's ticker symbol through Yahoo Finance or a Google search.