A pregnant client early in the first trimester asks the nurse how much weight to gain during the pregnancy. The nurse reviews the client's history and notes that the client's body mass index (BMI) is 23.6. Which amount will the nurse recommend? 11 to 20 lb (5 to 9 kg ) 15 to 25 lb (7 to 11 kg ) 28 to 40 lb (13 to 18 kg ) 25 to 35 lb (11 to 16 kg )