Which of the following best summarizes the information that must be provided when a database search is used to document a lack of alternatives?

The names of the databases used, the date of the search, the years of citations accessed, and the search strategy.

The list of citations and the date of the search.

The library service used to perform the search, the date of the search, and the key words used.

A narrative summarizing experimental data that justifies the use of the proposed animal model.