Which concise definition best distinguishes eclampsia from preeclampsia?

Eclampsia is gestational diabetes complicated by ketoacidosis and seizures.

Eclampsia is a term for any severe pregnancy-related infection that causes fever and convulsions postpartum.

Eclampsia is preeclampsia with seizures.

Eclampsia is high blood pressure in pregnancy that always resolves without treatment and never affects organs or causes seizures, making it a benign, self-limited hypertensive state specific to pregnancy and separate from preeclampsia in its pathogenesis and clinical course.