What Is the Usual Treatment for Patients Presenting with Deep

What is the usual treatment for patients presenting with deep venous thrombosis?

A) Administration of oral anticoagulant (warfarin) followed by heparin therapy
B) Administration of lupus anticoagulants followed by heparin therapy
C) Administration of intravenous heparin, followed by several months of oral anticoagulant (warfarin) therapy
D) All of the above
E) None of the above