>>503
ちょっと立て込んでたもんで、遅くなって済まなんだ
(b)又は(c)又は(d)の場合はA5の正負を反転、それ以外はそのまま　と解釈した

B5の値
=IF(OR(OR(AND(COUNTIF(G1:G4,">=0")=4,COUNTIF(C4:F4,"<0")>0),
AND(G1<0,AND(COUNTIF(G2:G4,">=0")=3,COUNTIF(C4:F4,">=0")=4))),
AND(G1<0,AND(COUNTIF(G2:G4,"<0")>0,COUNTIF(C4:F4,"<0")>0))),
IF(A5>=0,"×","〇"),IF(A5>=0,"〇","×"))

長え('A`)
途中の改行は要削除