Problem: A type 2 diabetic patient that has been using Lantus for 3 months to help control his diabetes presents for a recheck. After history and examination, it is decided to have the patient continue to use the Lantus and come back in 3 months. An A1c will be performed before the next visit. a) E11.9, Z79.4 b) E11.8, Z79.4 c)E13.9, Z79.84 d)E11.9, Z79.84