The following are multiple choice questions (with answers) about medical knowledge.   **Question:** According to WHO classification of periapical pathology, 4.81 means:   (A) Periapical cyst   (B) Lateral cyst   (C) Residual cyst   (D) Inflammatory periodontal cyst
['(C) Residual cyst <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Periapical cyst \n (B) Lateral cyst \n (C) Residual cyst \n (D) Inflammatory periodontal cyst <> possible answers', '  According to WHO classification of periapical pathology, 4.81 means: <> context@']