Which of the following is a defining characteristic of an IRM tool?

A) It gives writers little control of their documents once it's transmitted.
B) It allows the user to run a spell check.
C) It gives writers the ability to specify who can read or change their documents.
D) It allows writers to simply password-protect their documents.
E) It allows writers to simply encrypt their documents for protection.

The defining characteristic of an Information Rights Management tool is that it gives writers the ability to specify who can read or change their documents, which is not possible with simple password protection or encryption. Option A is incorrect because writers usually have control over their documents even after transmitting them. Option B is incorrect because spell check is not unique to IRM tools. Option D and E are incorrect because they only provide basic protection and do not allow for specified access control.