A.δ<0.67H,0.67H<δ<2.5H,δ>2.SH
B.δ<0.67H,δ<2.5H,δ<10H
C.δ<0.67H,0.67H<δ<2.5H,δ<10H
D.δ<0.67H,0.67H<δ<2.5H,2.5H<δ<10H