Can an Escalation Rule be used to handle this scenario?

Yes, an Escalation Rule can be used to handle the scenario of automatically reassigning parts of an access review to a different certifier. In SailPoint IdentityIQ, Escalation Rules are often employed within certification campaigns to manage situations where a primary certifier has not completed their review within a specified timeframe. The rule can trigger actions such as reassigning the review items to a different certifier, thus ensuring that the certification process continues smoothly without delays.

Therefore, the correct answer is A. Yes.