Final answer:
The nurse should respond with option A, "Your provider can discuss an appropriate amount of weight gain with you."
Step-by-step explanation:
The nurse should respond with option A, "Your provider can discuss an appropriate amount of weight gain with you." During pregnancy, the recommended weight gain depends on the pre-pregnancy weight and can vary. The nurse cannot provide a specific number without considering the client's specific circumstances. It is important for the client to consult with their healthcare provider who will take into account factors such as BMI, overall health, and any medical conditions to determine the appropriate weight gain.