Which sentence from the article shows how the ancient Greeks solved their problem with spacing and crowding? A: People sang hymns in the temples in celebrations that developed into plays. B: Soon, the temples were too small to hold the big crowds. C: Over the next few hundred years, huge outdoor amphitheaters were built in cities throughout Greece. D: If you had visited an amphitheater more than 2,300 years ago, you would have taken your lunch, because you'd be there all day to see four plays plus dances.