With regard to the BWR/4, Boiling Water Reactor Primary Containment System design, what is the primary function of the "Pressure Suppression Chamber"? Group of answer choices Serves as a heat sink for blowdown from the vacuum relief system. Serves as a heat sink for pressurizer safety valve discharge in the event of an overpressure condition. Serves as a heat sink for blowdown from the drywell after an accident. Serves as a heat sink for main steam safety valve discharge in the event of an overpressure condition