Final answer:
The TCSEC, commonly known as the Orange Book, is the security architecture model part of the Rainbow Series, which is a series of documents used for security evaluation. Therefore the correct option is b. TCSEC.
Step-by-step explanation:
The security architecture model that is part of a larger series of standards collectively referred to as the Rainbow Series is b. TCSEC (Trusted Computer System Evaluation Criteria).
The Rainbow Series is a collection of documents published by the United States Department of Defense to specify standards for security evaluation.
Each document in the series had a different colored cover, hence the name. The most well-known of these is the Orange Book, which outlines the TCSEC. It was the standard used for evaluating the security of a computer system or network and inspired subsequent models such as the ITSEC and Common Criteria.
The security architecture model that is part of the larger series of standards referred to as the Rainbow Series is B.TCSEC
The Rainbow Series is a collection of documents published by the United States Department of Defense that define requirements and guidance for secure computer systems. TCSEC, also known as the Orange Book, is one of the standards in this series.
It provides a framework for evaluating the security of computer systems, focusing on confidentiality. The TCSEC has various classes ranging from D to A, with Class A being the most secure.
Therefore the correct option is b. TCSEC.