This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Prostaglandin causing renal vasodilation: 
Select and explain. 
A. PGD2, B. PGE2, C. PGF2, D. All
B: PGE2
Answer: B: PGE2 
Explanation: B i.e. PGE2 Blood vesselsPlateletsBronchiKidneyUterusPGE2VasodilationVariable effectDilatationVasodilatationRenin releaseContractionSoftening of cervix ContractionSoftening of cervixPFF2aVasodilation-Constriction-PGI2VasodilationAntiaggregatoryDilatationVasodilationRenin release?TXA2VasoconstrictionAggregationConstrictionVasoconstriction-