What was the goal of the Pacific Railway Act in 1862? A. Pay for a railroad connecting the East with the West

B. Lower the fares on train travel

C. Protect train passengers from attacks by bandits

D. Allow for safer travel along the Pacific coast

I think the answer is D

Ifound this on google “the existence of agglomeration economies is central to the explanation of how cities increase in size and population, which places the phenomenon on a larger scale. the concentration of economic activity in cities is one reason for their development and growth.” i hope this you for what your looking for.