The correct answers are C and E . An AMA channel needs two things at the same time: participation and structure. A workflow for question submission gives employees an easy, consistent way to participate without flooding the channel with scattered posts. It can capture questions in a standard format and route them to moderators for review, sequencing, or grouping. Restricting posting permissions to session moderators keeps the channel clean and prevents uncontrolled side discussions, duplicate questions, or fragmented threads. Together, these practices preserve engagement while maintaining order. Option A can be useful for lightweight feedback, but emoji reactions do not provide a structured way to ask questions. Option B is wrong because deleting answered questions destroys useful context and reduces transparency. Option D encourages participation but sacrifices organization; open posting permissions are exactly what can make a large AMA channel noisy and hard to follow. The strongest design separates question intake from moderated publishing.

Reference topic: Learning and Enablement — AMA channel design, Workflow Builder, moderated engagement, posting permissions, and organized launch communications.

==========