The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which of the following is a tertiary monoblock system of obturation of the root canal.   (A) Resilon monoblock obturation   (B) Active Gutta percha   (C) Orthograde obturation with MTA   (D) Gutta Percha and AH plus sealer
['(B) Active Gutta percha <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Resilon monoblock obturation \n (B) Active Gutta percha \n (C) Orthograde obturation with MTA \n (D) Gutta Percha and AH plus sealer <> possible answers', '  Which of the following is a tertiary monoblock system of obturation of the root canal. <> context@']