Which object helps maintain copies of a vSphere pod?

Which object helps maintain copies of a vSphere pod?
A. ReplicaSets
B. Network Policies
C. Namespaces
D. Persistent Volume

Answer: A
Explanation:

A ReplicaSet declares how the functionality of a pod is made scalable and resilient through redundancy. The ReplicaSet ensures that a specified number of pods is kept running. Example:
Deploy a ReplicaSet. • The ReplicaSet name is nginx-replica-demo. • Two replicas are expected to be running. • The ReplicaSet applies to pods with label nginx.
For more information about Kubernetes replica sets, see
https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/