The phrase "in the pipeline" (Line 2, Para. 6) most probably means" ______ ".

A．the earthquake beneath the Indian Ocean caused two plates cracked past each other
B．the strength of a tsunami depends on the displacement of the ocean floor
C．the shallower water near the coast killed 150,000 people in twelve countries
D．the surges continue to move on at a great speed even after the disaster

A．create an advanced warning system
B．prompt the cooperation among countries
C．raise funds from Pacific nations
D．provide the tsunami warning messages