The correct answer is A: Are using the sense to get audience to visualize. Imagery is a form of writing in which the writer clearly describes a character, setting, etc. in order to help his audience picture the scene.
Figurative language is not an alternative for imagery, and often times, both are used in literature. Although imagery can describe fire and water, it is not the only reason that imagery is used. In addition, many writers who use imagery can also become "great" and their works can become well-known.
The climax part is characterised for being the peak tension of the story, there is where all plot points lead to. So, most cases climax happens after a crucial decision or action is made by the main character.