A necropsy postmortem analysis) of a marine sea star that died after it was mistakenly placed in freshwater would likely show that it died because

A) its contractile vacuoles ruptured.
B) it was so hypertonic to the freshwater that it could not osmoregulate.
C) it was stressed and needed more time to acclimate to the new conditions.
D) its cells dehydrated and lost the ability to metabolize.
E) the sea star's kidneys could not handle the change in ionic content presented by the freshwater.