Which of these is NOT a cloud approach to identity management according to the book.

Group of answer choices

Multi$-$Forest on$-$prem domains at multiple locations.

On$-$prem resources exist but no new on$-$prem resources will be obtained. All new solutions will be IAAS or SAAS based.

Only SAAS solutions are used, no on$-$prem IT resources exist.

Hybrid identity is an intermediate solution currently used.