Which of the following is an example of an intransitive verb?

An intransitive verb is one that does not require a direct object to complete its meaning. It stands alone and conveys a complete thought without needing additional information to clarify what the subject is doing.

"Run" serves as a prime example of an intransitive verb. You can simply say "I run," and this sentence is complete; it clearly conveys the action of running without needing to specify what is being run or who is being run after.

The other verbs listed, while they can also function as intransitive in certain contexts, are more commonly used transitively, meaning they usually require a direct object to complete the sense of the action. For example, one can "cook" (something) or "write" (something), which indicates that these verbs typically operate within constructions that require additional objects to provide a full understanding. Similarly, "jump" usually involves an object or destination to clarify the action, even though it can be used intransitively as well. However, "run" is the clearest, most straightforward example of an intransitive verb since it often stands alone in its basic form.