A、pray B、revenge C、criticize D、protest A

Lebanese leaders have called for three days of mourning after a Christian cabinet minister was gunned down while driving near Beirut today.  The murder of Pierre Gemayel plunged the fragile Lebanese government deep into crisis.
  Outside Saint Joseph’s hospital, cabinet ministers, family members and stunned residents gathered in the wake of the murder. Pierre Gemayel’s motorcade had been riddled with bullets by unknown assailants. His father, former President Amin Gemayel urged Lebanese to make this a night of prayer and reflection, not of reckless acts of revenge.
Pierre Gemayel’s friend and political colleague Saad Hariri immediately pointed an accusing finger at Damascus, saying the hands of Syria are all over this.  Hariri’s father was killed two years ago and investigators say some evidence points to Syrian involvement there. Syria denies that and condemned the Gemayel killing. Prime Minister Fouad Siniora vowed the embattled government would carry on, but this killing plus six recent resignations mean the cabinet is barely big enough to function.