thE thirD BomB ExploDED whEn ______.
A．pEoplE gAthErED At thE stAtion wAiting For BusEs
B．thE poliCE CAmE
C．AmBulAnCEs sEnt thE DEAD AnD wounDED to thE hospitAl
D．thE CAr BomBEr wEnt into thE gArAgE