A nurse is providing discharge teaching to a client who has a new diagnosis of heart failure. Which of the following instructions should the nurse include in the teaching?

A. Weight should be measured consistently at the same time each day, ideally in the morning before eating, to accurately monitor fluid retention; subtracting food weight is not practical or accurate. B. Gradual increase in activity is important for clients with heart failure, as long as it does not cause shortness of breath (dyspnea). This helps improve functional capacity safely. C. A weight loss of 0.1 kg (1 lb) is not usually concerning; rapid weight gain (e.g., 2-3 pounds in a day or 5 pounds in a week) is more significant and should be reported. D. Consistency in timing and frequency of weighing is critical; daily weighing at the same time helps detect fluid retention early.