For our historical comparison purposes, how are large-company stocks defined? O A Stocks of the lowest 20 percent of the firms listed on the NYSE based on market capitalization O B Stocks with average annualreturns that exceed the average annual return of the U.S Treasury bil O C. Any firm that has been listed on the NYSE for 40 years or more O D. Stocks offirms included in the S&P 500 composite index O E Stocks of frms that employ over 5,000 employees Connect Adobe Connect