The correct answer is A) When recovering refrigerant from the centrifugal chiller using this method, it is possible to achieve the recovery levels required by law without any further recovery. This is correct because the illustration GS-RA-59 shows a refrigerant recovery setup that is designed to efficiently recover the refrigerant charge from a centrifugal chiller. The setup allows the refrigerant to be recovered as a liquid, which meets the regulatory requirements for refrigerant recovery without the need for any additional steps. The other options are incorrect because: B) the refrigerant is being recovered as a liquid, not a gas; C) the containment tank should not be vented back to the chiller evaporator shell, as this would defeat the purpose of the recovery process; and D) the entire charge may not necessarily be removed in one procedure, as the recovery process is designed to efficiently recover the refrigerant without over-evacuating the system.