question: Q:Under what physiologic state is the endogenous human analog of nesiritide produced?? 
  {'A': 'Increased external stress', 'B': 'Increased ventricular stretch', 'C': 'Increased intracranial pressure', 'D': 'Increased circulatory volume presenting to the kidneys', 'E': 'Decreased circulatory volume presenting to the kidneys'},