The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Eugenol may be replaced in the zinc oxide eugenol cement by:   (A) Acetic acid   (B) Alginic acid   (C) Phosphoric acid   (D) Ortho-ethoxy acid
['(D) Ortho-ethoxy acid <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Acetic acid \n (B) Alginic acid \n (C) Phosphoric acid \n (D) Ortho-ethoxy acid <> possible answers', '  Eugenol may be replaced in the zinc oxide eugenol cement by: <> context@']