Alife-threatening disease, characterized by high blood pressure that may afflict women late in the second or early in the third trimester.

The correct answer is- Preeclampsia

Explanation:

Preeclampsia is a complication during pregnancy which is characterized by high blood pressure in the pregnant woman and damage to internal organs like liver and kidney.

This complication starts normally after 20 weeks of the pregnancy. Before starting preeclampsia the pregnant woman's blood pressure is normal. Preeclampsia can lead to serious complications if it untreated and the delivery of the baby is the most effective treatment.  

Therefore preeclampsia is a life-threatening disease, characterized by high blood pressure in pregnant women.