What is the implication of using Deferred versus Concurrent firmware updates？（）

• A、Deferred firmware updates require a reboot to be applied， while concurrent updates do not.
• B、Deferred firmware updates require a full power IPL to be applied while concurrent updates do not.
• C、Concurrent firmware updates require all LPARs to be quiesced and shutdown prior to initiating the update， while deferred updates do not.
• D、Concurrent firmware updates can be applied to multiple managed systems in parallel， while deferred updates must be applied sequentially.