Final answer:
Option 1: In Huck's words, is the best choice for introducing a quotation from Huck as it provides a clear and seamless transition to his viewpoint in the essay.
Step-by-step explanation:
When introducing a quotation from Huck in sentence 10, it is essential to ensure that it is integrated smoothly to maintain the flow of the essay and the structure of the sentence.
Option 1: In Huck's words, is the best choice as it signals that the following quote is directly from Huck's point of view, recalling the tranquility and also the human influence on the natural setting on the river in The Adventures of Huckleberry Finn. This option creates a clear transition from the writer's voice to Huck's, aligning with effective essay writing practices that avoid 'floating quotations'.