Answer:
The three options that are clauses are: "whenever I go to the movies", "but it’s likely to rain that day", and "a tornado tearing through town".
A clause is a variety of words that contain a subject and a predicate and is part of a complex or compound sentence.
"Whenever I go to the movies" and "a tornado spinning through town" are dependent clauses and are part of a complex sentence.
"But it's likely going to rain on that day" is also a clause because it has a subject and a predicate and "but" is a conjunction that signals the clause is a depiction of a compound sentence. This clause is an independent.