Alula is exploring implementing a ZTA framework at his organization. Which of the

following best represents considerations he will most likely keep in the forefront?

a$.$ Ensure systems are in place such that no external entity is trusted, not

remote workers.

b$.$ Ensure subjects and systems are only able to access resources within

their zone.

c$.$ Ensure the PEP is configured to provide input into the PDP properly.

d$.$ Focus on authentication and authorization