All of the Following Statements About Hydraulic Hybrid Vehicles Are

All of the following statements about hydraulic hybrid vehicles are true EXCEPT:

A) Hydraulic hybrid systems store high-pressure fluid in accumulators at pressures above 3,000 psi.
B) Stored pressure provides power to one or more pump motors that provide power to the wheels.
C) Regenerative braking is less efficient with hydraulic hybrids than with electric hybrids.
D) During regenerative braking, the pump motors reverse, recharging the accumulator with pressure that can be used again for forward motion.