What Type of Change in Pressure Causes the Bends and Why

Multiple Choice

What type of change in pressure causes the bends and why?

A) an increase in pressure, because it results in nitrogen rapidly diffusing out of the bloodstream
B) an increase in pressure, because it results in nitrogen rapidly dissolving into the bloodstream
C) a decrease in pressure, because it results in nitrogen rapidly diffusing out of the bloodstream
D) a decrease in pressure, because it results in nitrogen slowly dissolving into the bloodstream
E) The bends is not a result of pressure changes.