The concept of present possession suggests which of the following?

a. Just because those files were on a subject’s computer, that doesn't mean the subject knew they were were.
b. Since the files are in the subject's possession, the assumption is that the subject knew they were there.
c. Because the file was knowingly moved from one location to another, the user knew the file was there.
d. The fact that the file exists on the hard drive proves that the user had direct access to the file.

c. Because the file was knowingly moved from one location to another, the user knew the file was there.