on An AvErAgE, pEoplE in AmEriCA who wErE Born in 1900 ______.
A．hAD A liFE-spAn oF 74 yEArs
B．livED A shortEr But BEttEr liFE thAn thosE Born lAtEr
C．livED to 47 yEArs oF AgE
D．livED 27 yEArs longEr thAn thosE Born in 1981