Which kubernetes component is the smallest deployable unit of computing?

A StatefulSet is a controller used to manage a set of Pods that require stable, unique network identifiers and persistent storage, not the smallest deployable unit itself.

A Deployment is a higher-level controller that manages the desired state of ReplicaSets and Pods, facilitating declarative updates to applications, but it is not the smallest deployable unit.

A Pod is the smallest and most fundamental deployable unit in Kubernetes, encapsulating one or more containers, shared storage, and unique network IP, which Kubernetes schedules and manages as a single entity.

A Container is an isolated process environment that runs an application, but Kubernetes orchestrates and deploys containers primarily within the context of a Pod, not as standalone units.