Question

What led to the greatest increase in communication? A.) the Post Office B.)the Cumberland Road C.)the turnpike D.) the steamboat

Answer 1

my best guess would be a the post office

Answer 2

A.) the Post Office

Step-by-step explanation:

Since the question is not about an specific location, the other alternatives might be better options or helped in specific situations, but generally speaking, nothing has done better for the communication, among the options, than the Post Office.