thE Author thinks thAt ______ .
A．mEDiCAl DECisions For olD pEoplE shoulD BE lEFt to thE DoCtors
B．olD pEoplE CAn Enjoy A hAppy liFE only iF thEy ArE vEry riCh
C．thE opinion thAt wE shoulD try EvEry mEAns possiBlE to sAvE olD pEoplE is DouBtFul
D．it is AlwAys morAlly right to trEAt olD pEoplE AnD push oFF DEAth