Someone pls help me

Which of the following american companies had a monopoly in the late 1800s?

What was one cause of the decembrist revolt? a. the desire for a constitutional monarchy b. the need for workers’ reforms c. the creation of a new railway line d. the outcome of the crimean war

34. in 2009, impaired drivers killed 154 a. child passengers of vehicles b. other motorists c. pedestrians d. none of the above