Final answer:
To identify the rhetorical device used in an excerpt, one needs to understand each device's unique characteristics. However, without the specific excerpt, it's not possible to determine which device is used.
Step-by-step explanation:
To determine which rhetorical device is used in a given excerpt, it's important to understand the different types of devices available. The options provided - asyndeton, metonymy, rhetorical question, and synecdoche - each have distinct characteristics. Asyndeton involves the omission of conjunctions between parts of a sentence. Metonymy is a figure of speech where one thing is represented by another that is commonly and often physically associated with it. A rhetorical question is a question asked not to get an answer but to emphasize a point or create a dramatic effect. Lastly, synecdoche is when a part of something is used to refer to the whole entity, or a whole entity is used to refer to a part.
Without an excerpt provided, it's impossible to determine which rhetorical device is used. However, the definitions provided should help in analyzing the text to identify the correct rhetorical device.