Which sentence uses a dash for punctuation

Read the passage from chapter 2 of animal farm. three nights later old major died peacefully in his sleep. his body was buried at the foot of the orchard. this was early in march. during the next three months there was much secret activity. major's speech had given to the more intelligent animals on the farm a completely new outlook on life. they did not know when the rebellion predicted by major would take place, they had no reason for thinking that it would be within their own lifetime, but they saw clearly that it was their duty to prepare for it. the work of teaching and organizing the others fell naturally upon the pigs, who were generally recognized as being the cleverest of the animals. pre-eminent among the pigs were two young boars named snowball and napoleon, whom mr. jones was breeding up for sale. which detail from the passage best supports the idea that the farm is a symbol for russia and the events surrounding the russian revolution? “three nights later old major died peacefully in his sleep. his body was buried at the foot of the orchard.” “major's speech had given to the more intelligent animals on the farm a completely new outlook on life.” “they did not know when the rebellion predicted by major would take place, they had no reason for thinking that it would be within their own lifetime . .” “pre-eminent among the pigs were two young boars named snowball and napoleon, whom mr. jones was breeding up for sale.”

Constructing an argument: in modern american society, the legalization of marijuana continues to be controversial and hotly debated. some people find it contradictory that certain "drugs"—such as tobacco and alcohol—are legalized even though they pose proven health risks, while marijuana, which has many medicinal applications, continues to be illegal by the federal government. what reasons do you think the federal government gives for outlawing marijuana, and do the reasons support the conclusion?

Based on this excerpt the authors are most likely to attempt to answer which question