All of the Following Statements Are True EXCEPT

All of the following statements are true EXCEPT:

A) a pressure regulator can become defective due to foreign material or a ruined diaphragm.
B) high pressure is usually caused by a bad pressure regulator or on looped systems when a pressure return line to the fuel tank is kinked.
C) if gasoline drips from the vacuum hose when it is removed from a fuel pressure regulator, it is defective.
D) fuel pressure regulators usually fail by causing pressure that is too high rather than too low.