The answer is: A) if you don’t buy them in advance.
An adverb clause functions as an adverb, modifying an adjective, verb or another adverb. It contains a subject and a verb, and it provides information as regards how, when, where and why the action happens.
Adverb clauses are also dependent clauses because they cannot stand on its own - they do not express complete thoughts by themselves. As a result, they need to join a main clause in order to make sense. They are joined to main clauses through subordinating conjunctions, such as <em>while, although </em>and <em>if</em>.
The theme is the lesson learned or moral convey and it often ties in with the plot because the themes is expressed by Either the stories conflict or the resolution to the stories conflict
