This is a english assignment but i could not find it in the drop down menu.

Convoys are defined as a group of vehicles (trucks, cars, ships etc.) that travel together for mutual protection and support. Sometimes the military deploys in convoys especially when travelling through remote areas. During Super Storm Sandy, the power companies brought linemen in from around the country via convoys to get the embattled northeastern portion of the United States powered and back to normal. Not all convoys operate above the law, however. Years ago, convoys were conducted in opposition to speed limit restrictions, speed traps and to keep tight delivery deadlines. These ran well above the posted speed limit and thus were illegal. They organized and maintained their plan of action, "in code" with communication over CB radios. Their hopes were that law enforcement could only ticket a few of the perpetrators while the majority were never caught. Current U.S. Department of Transportation (D.O.T.) regulations have greatly reduced such recklessness on the nation's highways. Today, 18-wheeler's convoys are operated at legal speeds to help truckers to maintain driver alertness on the road. 45 The main subject of this passage is: A. the only thing truckers talk about on their CB radios. B. why the army does not dispatch just one soldier against invading forces. C. the various types of convoys and the reasons for their use. D. how the D.O.T. took away the joy of driving for truck drivers with its rules and regulations. 1