During a post-operative period, a patient experiences spontaneous bleeding and bruising, with skin petechiae. Blood tests indicate a depletion of clotting factors. Which treatment is most appropriate for this condition?
A. Start long-term warfarin therapy.
B. Replacement of the consumed clotting factors.
C. Admintratoion of high-dose intravenous immunoglobulin
D. Administration of factor VIII concentrates