scientist measures the number of flies in a room over time. The results are shown below. Time (hours) Number of flies 10 105 20 97 30 91 40 90 50 90 60 90 Which of the following statements describes the trend in the data? A. The number of flies decreased, then leveled off. O B. The number of flies increased, then decreased. O C. The number of flies was constant. OD. The number of flies decreased, then increased