試題詳解

49. Why, according to the passage, is late motherhood a marker for longevity?
(A) Late motherhood suggests more mature physical and psychological conditions.
(B) Old mothers need not spend as much energy on their children as young mothers.
(C) Women who get pregnant when they are old receive more feedback from the children.
(D) Late pregnancy implies late menopause, suggesting delayed onset of age-related diseases.