Which ONE of the following statements correctly describes the main function of Open Group Architecture Framework $($TOGAF$)$ as Reference Architecture Framework?

a$.$

is tool used for monitoring the architecture for an organization

b$.$

a process$-$centric techniques for visualizing Enterprise Systems;

c$.$

is event$-$driven process chains $($EPCs$)$ for modelling language

d$.$

is a guide for the development of the Enterprise information System;

e$.$

None of the answers is correct