If you uncover critically important information (the sort that could make or break your company) that is from a credible source and appears to be unbiased, well documented, current, and complete but is the only source of this information you can find, how should you handle this situation in your subsequent reporting?

a. Use it as you would use any other information.

b. Use it but clearly indicate the source in your report.

c. Use it but clearly indicate in your report that this is the only source of the information and you weren’t able to verify it through a second, independent source.

d. Don’t use it.