How did the bulding of the railroads affect people's ability to travel?

Which of these statements best describes the ambiguity in this excerpt

During the invasion of the soviet union, the einsatzgruppen did which of the following? killed large numbers of jews, as well as many locals. led military troops. eliminated local administration in lithuania. took over many administrative functions in the war effort. planned and organized extermination camps.

What happened right after the battle of concord ?