5. (E)
Question Type: Inference (55-58)
The question directs us to the end of the passage. In the last sentence, the author cites "documents and other concrete embodiments" as an exception to the general principle that injunctions cannot control the flow of trade secrets. It follows that, as (E) puts it, these are easier to control and identify than other forms of information.
(A) is not supported by the passage, which doesn’t contrast the significance of the information found in documents with other forms of information.
(B) is not supported by the passage, which doesn’t contrast documents and other forms of information with respect to how informative they are.
(C) is not supported by the passage; the author makes no suggestions about what materials should be targeted by injunctions.
(D) contradicts the passage: the author believes that these materials, unlike other forms of information, can be controlled by injunctions.