How many people were injured in the first explosion

A．It forced schools to close.
B．It forced the biggest seaport of Malaysia to shut down.
C．It drifted from forest fires.
D．It occurred in 1997.

A．Many computers were broken.
B．Dozens of records of applicants were hacked into.
C．A number of people could not be identified.
D．The new computer software was stolen.