While doing research for his speech, Aaron was not able to identify the author of an Internet document titled ""What Can and Cannot Be Patented."" According to your textbook, what should Aaron do next to assess the credibility of the document?

a. Double-check the accuracy of the document's URL.
b. Search for the document in the library.
c. Try to determine the sponsoring organization for the document.
d. Look up the year the document was published.