Which triad of findings is most characteristic of classic preeclampsia?

Hypotension, hypoglycemia, and hyperreflexia beginning before 12 weeks' gestation as the defining features of preeclampsia.

Elevated fasting glucose with glycosuria and polyphagia first diagnosed in the first trimester.

Chronic cough, hemoptysis, and elevated liver enzymes without hypertension, occurring only postpartum.

New-onset hypertension after 20 weeks' gestation, proteinuria or other signs of end-organ dysfunction, and peripheral edema.