Final answer:
Increased vasodilation is NOT a symptom of preeclampsia; instead, the condition is characterized by symptoms such as hypertension, proteinuria, and edema.
Step-by-step explanation:
The correct answer to the question about which is NOT a symptom of preeclampsia is D. increased vasodilation. Preeclampsia is characterized by hypertension (increased blood pressure), proteinuria (the presence of protein in the urine), and edema (swelling), but not by increased vasodilation. In fact, preeclampsia often involves decreased vasodilation due to endothelial dysfunction. The hallmark symptoms of preeclampsia are hypertension and proteinuria. Although edema was considered a classic feature of preeclampsia in the past, it is now known to be a less specific indicator. Increased vasodilation would likely lead to decreased blood pressure, which is contrary to what occurs in preeclampsia.