【单选题】By 2030, people over 65 in Germany, the world's third-largest economy, will account for almost half the adult population, compared with one-fifth now. And unless the country's birth rate recovers from...
A.
birth rate has gone up to 1.3 per woman
B.
people over 65 now constitutes about half the adult population
C.
its population of under-35s is twice as large as that of over-65s