Which office is responsible for managing and maintaining mission-essential equipment?

The Equipment Management Office (EMO) is the correct choice because it is specifically designated to manage and coordinate all aspects related to mission-essential equipment within an organization. This includes the acquisition, accountability, maintenance, and disposal of equipment that is critical for mission readiness and operational efficiency. The EMO ensures that all equipment is properly tracked and maintained, which is vital for meeting mission requirements.

While other offices such as the Logistics Readiness Squadron and Supply Chain Office may play significant roles in logistics and the flow of materials, the primary focus of the EMO is directly tied to the management of equipment. The Warehouse Management Office generally deals with the storage and handling of items rather than the broader responsibilities associated with mission-essential equipment directly.