Options and C are incorrect, basically, because of the same characteristics: both would not be enough to provide detailed information about the destination, Colorado, in this case, because it is not their intention.
On the other hand, a state map would provide enough information because it specializes in a specific area or region, in this case, the state of Colorado, so B is the right answer.
The best answer to the question that is being stated above would be the sentence that is numbered one (1): 'When it comes to fiction, there are many genres'. The next sentences are only subtopics and only support the main idea that are lots of genres for fiction.
