The Russian Revolution instigated by the Germanic Empire put a hold on the eastern front freeing up more supplys that the Empire could move to the western front putting a lot more stress on the allied efforts to move forward with the war until the peace treaty was signed.
The answer is B: if the posted speed is not safe at the time
I would say A or C since it depends on the myth.
The contras<span> is a label given to the various U.S.-backed and funded right-wing rebel groups that ... After US </span>support<span> was banned by Congress, the </span>Reagan<span> administration .... The </span>secret contra<span> assistance was run by the National Security Council, with ... by paid consultants who </span>did<span> not disclose their connection to the </span>Reagan<span> ...</span>