How can you create a service account in Kubernetes?

Creating a service account in Kubernetes is accomplished using the command kubectl create serviceaccount <name>. This command directly instructs Kubernetes to create a new service account in the specified namespace (if a namespace is not specified, it defaults to the 'default' namespace).

Service accounts are important in Kubernetes as they provide an identity for processes that run in a pod, allowing them to interact with the Kubernetes API. The create serviceaccount command is a standard way to accomplish this task, following the expected syntax for creating resources within Kubernetes.

The other options presented do not correspond to valid commands in Kubernetes. For instance, "new", "add", and "initiate" are not recognized verbs in the context of managing Kubernetes resources, hence they would lead to errors if attempted. The command structure in Kubernetes is fairly consistent, with "create" being the correct verb for initiating the creation of resources like service accounts.