【单选题】People born in autumn live longer than those born in spring and are less likely to fall chronically (慢性) ill when they are older, according to an Austrian scientist. Using census (人口统计) data for more ...
A.
how the month of birth is related to life expectancy
B.
how the seasonal pattern affects the health of new-born babies
C.
how nutrition in different seasons influences life expectancy
D.
why people born in autumn are free from chronic illness