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Which details relate to the main fact in the third paragraph?

A - Killer bees attack in great numbers. They swarm for many reasons. They chase people and stay angry for hours.

B - Killer bees have very aggressive behavior. Their stings are very dangerous. They have caused many deaths.

C - Killer bees sting in just three seconds. They sting in large numbers. They cause allergic reactions in their victims.

D - Killer bees have been the cause of deaths in South and Central American. They’ve caused deaths in Mexico and the U.S