Answer:
B. Railroad companies knew people world pay a lot for a much faster an safer way to travel west.
Step-by-step explanation:
Western farmers relied on railroads for crops and other goods transportation than other regions because they lacked roads or river systems. The expansion of the railroad reduces the time and money to move large goods. The railroads helped people to move to the West to start a new life. Railroad companies change rates so they would increase their profits.