it sEEms thAt mArs ______.
A．mAy BE inhABitED By AttrACtivE mArtiAns
B．mAy hAvE somE vEgEtABlE liFE
C．CAn hAvE no liFE At All
D．mAy hAvE Both vEgEtABlE AnD AnimAl liFE