hunDrEDs oF thousAnDs oF irish pEoplE stArvED During thE "potAto FAminE" BECAnsE ______ .
A．thEy wErE so DEpEnDEnt on potAtoEs thAt thEy rEFusED to EAt Anything ElsE
B．thEy wErE ForCED to lEAvE thEir homElAnD AnD movE to north AmEriCA
C．thE wEAthEr ConDitions in irElAnD wErE not suitABlE For growing potAtoEs
D．thE potAto hArvEst wAs BAD