What is the central idea of section 2?

Responses
A Presidential libraries have books written by past presidents.Presidential libraries have books written by past presidents.
B Presidential libraries differ from other libraries and are similar to museums.Presidential libraries differ from other libraries and are similar to museums.
C Presidential libraries were built to encourage historical research.Presidential libraries were built to encourage historical research.
D Presidential libraries were built to encourage the public to learn about past presidents.

The central idea of section 2 is that presidential libraries differ from other libraries and are similar to museums.

To determine the central idea of section 2, you should first read and analyze the content of that section. Look for key information and ideas presented in the text that are emphasized or discussed at length. Compare this information with the options provided and select the option that best aligns with the main focus of section 2.

In this case, section 2 seems to be primarily about the purpose and characteristics of presidential libraries. It discusses how presidential libraries differ from other libraries and are similar to museums, and it also mentions that these libraries were built to encourage historical research and public learning about past presidents.

Considering these points, the option that best captures the central idea of section 2 is:
B) Presidential libraries differ from other libraries and are similar to museums.

Presidential libraries were built to encourage the public to learn about past presidents.