Female, 25 years old, pregnancy for 32 weeks with placenta previa. There were massive hemorrhage from vagina since yesterday, with ecchymosis. The whole blood cell count showed WBC 8.5×109/L, Hb 90g/L,PLT 20×109/L. The coagulation test results were PT 42 seconds, fibrinogen level 1.1g/L, 3P test (+). Which is the best treatment principle for the patient
A: Termination of pregnancy+PAMBA
B: Termination of pregnancy + Heparin
C: Termination of pregnancy+platelets transfusion
D: Termination of pregnancy+supplement with fibrinogen concentrates
E: Termination of pregnancy+heparin+supplement with fresh plasma and platelets transfusion