Read the following passage and answer the question.
"The first tax-supported free public library in the United States opened in Peterborough, New Hampshire, in 1833. Since then, public libraries have grown into community hubs offering not just books, but also internet access, job training, meeting rooms, and social services. Today about 9,000 public library systems operate roughly 17,000 locations across the country."
What is the MAIN PURPOSE of this passage?
- ATo persuade people to donate to their local library
- BTo trace the history and expanded role of public libraries
- CTo compare libraries in different states
- DTo explain how to get a library card