【单选题】A Fire near Waco Six years later, in an about-face, the Federal Bureau of Investigation(FBI) admits that federal agents fired tear gas canisters capable of causing a fire at the Branch Davidian compou...
A.
the canisters were fired at the main structure
B.
the canisters were fired hours before the fire started
C.
federal agents fired tear gas canisters capable of causing a fire
D.
other tear gas canisters that were not flammable or potentially explosive were also used