How did the railroad system contribute to the growth and expansion of

england's population?
select one:
a. railroads provided new economic opportunities throughout england, which allowed people to raise large healthy families.
b. the railroad brought immigrants into england from other european countires, growing the population.
c. railroads were used primarily to transport food--with plenty of food to eat, the people of england did more exploring.
d. the population of england grew as railroads connected outlying farms to make farming and raising livestock more efficient.