The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A condition of the mouth which increases the caries activity in the oral cavity is   (A) Xerostomia   (B) Fissured tongue   (C) Hairy tongue   (D) Watery saliva
['(A) Xerostomia <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Xerostomia \n (B) Fissured tongue \n (C) Hairy tongue \n (D) Watery saliva <> possible answers', '  A condition of the mouth which increases the caries activity in the oral cavity is <> context@']