Identify the transitive verb in the sentence: "She read the book."

In the sentence "She read the book," the transitive verb is "read." A transitive verb is characterized by its ability to take a direct object, which is the noun that receives the action of the verb. In this case, "read" is the action being performed by the subject "She," and it directly affects "the book," which is the object of the verb.

Since "read" shows a clear action that is being directed towards "the book," it fulfills the requirements of a transitive verb, making it the correct choice. The structure of the sentence allows us to see that without the direct object "the book," the sentence would be incomplete and wouldn't convey a complete thought regarding what was read.