Which book of the Rainbow series addresses the Trusted Network
Interpretation (TNI)?

A.
Red Book

B.
Purple Book

C.
Orange Book

D.
Green Book

Explanation:
The Red Book is one book of the Rainbow Series, a six-foot-tall
stack of books on evaluating Trusted Computer Systems according
to the National Security Agency. The term Rainbow Series comes
from the fact that each book is a different color. The Trusted Network
Interpretation (TNI) extends the evaluation classes of the Trusted
Systems Evaluation Criteria (DOD 5200.28-STD) to trusted network
systems and components.
* the Orange Book, is the main book of the Rainbow
Series and most of the other books elaborate on the information contained
in this book. The Orange Book is the DoD Trusted Computer
System Evaluation Criteria [DOD 5200.28]1.

* the Green Book, is CSC-STD-002-85, the DoD Password Management Guidelines.
* the Purple Book, is NCSC-TG-014, Guidelines for
Formal Verification Systems. Source: NCSC-TG-005 Trusted Network
Interpretation [Red Book] and DoD Trusted Computer System Evaluation
Criteria [DOD 5200.28-Orange Book.]