Over the course of time, lions have undergone periods of population decline.
(B) During the 19th and 20th centuries, the human population increased multifold while the wrold's lion population declined precipitously.
3번째 문단 맨 마지막에 it is estimated that between 1800 and 2000, the human population grew by 600 percent while the lion population decreased by 95 percent. 라고 나와있는데 이게 답이 왜 안되는지 모르겠습니다..