it is impliED in thE lAst pArAgrAph thAt _________.
A．only thosE livED nEAr sEA CoulD survivE
B．lACk oF oxygEn lED to thE ExtinCtion oF most oF thE spECiEs
C．thE living spACE wAs too smAll to holD so mAny spECiEs
D．gloBAl wArming is rElAtED to humAn ACtivitiEs