A 22-year-old primigravida with type 1 diabetes presents at 12 weeks for her prenatal visit. She asks what she can do to lower her risk of preeclampsia. Which teaching should the nurse provide?

Rationale: A. Increasing salt intake is not recommended for preeclampsia prevention; excessive sodium can contribute to hypertension. B. Starting folic acid in the third trimester is too late; folic acid is important in the periconceptional period to prevent neural tube defects but does not prevent preeclampsia. C. Beginning low-dose aspirin daily before 16 weeks of gestation is supported by evidence to reduce the risk of preeclampsia in high-risk pregnancies, including those with type 1 diabetes. D. Avoiding all physical activity is not recommended; moderate activity is safe and beneficial unless contraindicated by the provider.