The U.S. Postal Service has played a more significant role in American history than its routine modern image suggests. In the early republic, postmasters were often the most reliable sources of news in rural communities, and post offices doubled as informal civic spaces. The postal network was, for decades, the country's principal information infrastructure.
Which choice best describes the function of the second sentence in the text?
- A
It contradicts the claim about historical significance.
- Bcheck_circle
It supports the historical-significance claim with specific functions of early postal infrastructure.
- C
It introduces an unrelated federal agency.
- D
It defines the term 'postmaster'.
Explanation
The second sentence cites postmasters' news role and offices' civic role to support the opening claim. B is correct.