whAt surprisED somE pArtiCipAnts During thE tour oF thE FACtoryA．thE CompAny’s suCCEss in its EFForts to protECt thE EnvironmEnt
B．thE CArE whiCh thE CompAny tAkEs to ChECk proDuCt quAlity
C．thE numBEr oF wAys in whiCh thE CompAny usEs its own proDuCts