The answer is A, because if he took the % of how many people attended the last game, that wouldn't be a sample. If he took a sample of the friends of the players, they don't necessarily have to be a part of the town. If he took a sample of the people who are on sports teams, that would just be dumb. He wanted to know how many people from the TOWN would attend. SO if he took a random sample of the people from the TOWN, he would have the most accurate answer.
