Yesterday's strike caused the most confusion for ______.

A．attempted to halt the whole network for train travel
B．were dissatisfied with proposed rise in unemployment
C．were unhappy with their working conditions
D．wanted to support workers from other unions

A．kill 18 government soldiers
B．leave the southern area of Vainer
C．derails the shaky peace process
D．retaliate for a Chechen rebel ambush