The following are multiple choice questions (with answers) about medical knowledge.   **Question:** Which type of laser is used in waterlase system?   (A) Argon laser   (B) Diode Laser   (C) Nd:YAG laser   (D) YSGG Laser
['(D) YSGG Laser <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) Argon laser \n (B) Diode Laser \n (C) Nd:YAG laser \n (D) YSGG Laser <> possible answers', '  Which type of laser is used in waterlase system? <> context@']