Which of the following processes illustrate the study of a technical nature of interest to focused audience, and consist of interim or final reports on work made by NIST for external sponsors, including government and non-government sponsors

Which of the following processes illustrate the study of a technical nature of interest to focused audience, and consist of interim or final reports on work made by NIST for external sponsors, including government and non-government sponsors
A . Federal Information Processing Standards (FIPS)
B . Special Publication (SP)
C . NISTIRs (Internal Reports)
D . DIACAP

Answer: C