单项选择题

A.PLT<100×109,Fg<1.5g/L,FDP<20pg/L
B.PLT<100×109,Fg<1.5g/L,VII:C>50%
C.PLT<100×109,FDP>20pg/L,PT<4s
D.Fg<1.5g/L,DP<20pg/L,PT<4s