Answer: All are used to evoke emotional response.
An analogy refers to a comparison between two things, often for the purpose of clarification. A metaphor is similar to an analogy, as it is a rhetorical device that compares two things. However, while a metaphor is a figure of speech, an analogy is closer to a logical argument. Finally, loaded language is a type of language that uses words with strong positive or negative connotations. All of these devices are used by authors in order to evoke an emotional response on the reader.