The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Theories which define the etiology of thumb sucking:   (A) Sigmond Freud theory.   (B) Oral drive theory.   (C) Benjamin theory of rooting reflex.   (D) All of the above.
['(D) All of the above. <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Sigmond Freud theory. \n (B) Oral drive theory. \n (C) Benjamin theory of rooting reflex. \n (D) All of the above. <> possible answers', '  Theories which define the etiology of thumb sucking: <> context@']