The correct answer is: False.
The httr package is a powerful tool for working with web APIs, and it can be used to access data from a variety of sources, including Facebook and Twitter. In fact, the httr package includes a number of functions that are specifically designed for working with these APIs.
For example, the httr::GET() function can be used to retrieve data from a Facebook or Twitter endpoint. The httr::POST() function can be used to post data to a Facebook or Twitter endpoint. And the httr::DELETE() function can be used to delete data from a Facebook or Twitter endpoint.
In addition, the httr package includes a number of functions that can be used to handle authentication with Facebook and Twitter. For example, the httr::config_oauth() function can be used to configure OAuth 2.0 authentication with Facebook or Twitter. And the httr::oauth_sign_request() function can be used to sign a request with OAuth 2.0 credentials.
Overall, the httr package is a powerful and flexible tool for working with web APIs, and it can be used to access data from a variety of sources, including Facebook and Twitter.