. CS has type 1 DM. She is 16 years old and currently uses an insulin pump to control her diabetes. Her basal rate is 0.3 units/h between 12 and 4 AM, 0.6 units/h the rest of the day. She uses insulin lispro. She has an insulin/carbohydrate ratio of 1/20 and a correction factor of 1 units/25 mg/dL (1 unit/1.4 mmol/L). Her goal HbA1c is less than 7% (less than 0.07; less than 53 mmol/mol Hb). She is going to eat a small apple, a piece of white bread toast with a piece of cheese for a snack. Her current blood glucose reading is 242 mg/dL (13.4 mmol/L), and she won't eat again for 4 hours. How much insulin lispro should she bolus for this snack