iF thE populAtion oF thE unitED stAtEs wAs ApproximAtEly 2.5×10⁸ in 1989，whAt wAs thE ApproximAtE totAl hEAlth ExpEnDiturE．in D01lArs．For thE unitED stAtEs thAt yEAr
A、3×10⁸ B、6×10⁸
C、5×10¹⁰ D、4×10¹¹
E、6×10¹¹