Answer:
The sentence "The crowd goes wild." is a Simple Sentence.
Step-by-step explanation:
A simple sentence is a sentence that consists of only one independent clause, which contains a subject and a predicate and expresses a complete thought.
In the given sentence, "The crowd goes wild.", there is only one subject ("crowd") and one predicate ("goes wild"), and it expresses a complete thought. Therefore, it is a simple sentence.