試題詳解

23. Why is life expectancy at birth in Sweden mentioned in the passage?
(A) Because it has documented the life expectancy of its citizens for long.
(B) Because it has set an example for people in the United States to follow.
(C) Because the life expectancy of its people has been the longest among all countries.
(D) Because the life expectancy of its people has grown steadily with each passing year.