Final answer:
The correct choice that uses a parallel structure is Option 2, which maintains consistent verb tense for the actions of the dog, in line with the rules of parallelism.
Step-by-step explanation:
The question asks to select the answer choice that correctly uses a parallel structure. Parallel structure, or parallelism, involves using the same pattern of words to show that two or more ideas have the same level of importance. When looking at the options provided, Option 2 retains parallelism best because it presents three actions of the dog by using the same grammatical form: 'charged', 'going', and 'went', all past tense verbs, making this the correct choice.
Option 2: The perky Labrador retriever charged through the yard, going down the hill, and went after the squirrels. This sentence demonstrates parallel structure by using a consistent verb tense to describe the actions of the Labrador retriever. All the verbs relate to the activity of the dog and are structured to give a smooth, rhythmic flow to the sentence, enhancing readability and ensuring grammatical consistency.
1