45. Pets have a relaxing ____. Petting or stroking an animal can improve your mood. (A) effect (B) affect (C) defect (D) depression

59. ______ appetite over the course of 24 hours may not indicate a serious concern, but after the 24 hour period a pet owner should consider seeking veterinary care. (A) Lacking of (B) A lack of (C) Lack (D) Lack of