The invention of telephones changed the way people lived and worked during the Progressive era.
Answer: Option B
Step-by-step explanation:
The possibility of communicating over long distances within short spans of time without having to physically reach out to the other person or the party opened new doors of increased convenience. The invention of telephones made the world seem like a smaller place than ever before.
As delivering important messages quickly became easy, the complication involved in complex operations was reduced to its lowest. This brought significant changes in the lives of the people as they could easily communicate with the people residing far away without having to meet them in person.