A.I. Explanation:

Option 1: "To collect used books for recycling"

Explanation: This option is incorrect because the text does not mention anything about collecting used books for recycling. The focus of the 'Books on Wheels' service is on providing access to literature, not recycling.

Option 2: "To increase access to literature"

Explanation: This option is correct as it aligns directly with the main idea of the text. The text states that the 'Books on Wheels' service is aimed at increasing access to literature for everyone, which is its primary purpose.

Option 3: "To sell books at community events"

Explanation: This option is incorrect because the text does not indicate that the service is intended for selling books. Instead, it focuses on borrowing and returning books, which does not involve sales.

Option 4: "To provide a mobile internet service"

Explanation: This option is incorrect as the text does not mention anything about providing internet services. The 'Books on Wheels' service is specifically about delivering books, not internet access.