By default, Excel keeps a change history of ____ days for a shared workbook.

Ruby supports thousands of methods. You can use the ____ system to access documentation on these methods.

A. ri B. RDoc C. DocView D. a and b

Case 2Brandon works for a large construction firm in the Northeast.  Brandon was hired for his excellent skills in web design, specifically his experience with Dreamweaver.  Brandon is eager to put his experience and skills to good use. Brandon uses photos and other media from federal government websites on the construction firm's site.  Why is Brandon probably within his legal rights to use this media?

A. In general, the media on federal government websites is in the public domain. B. The media used on the site was never copyright-protected. C. The media used on the site was never trademark-protected. D. Brandon gave attribution for the media used on the firm's website.