Final answer:
The correct answer to complete the sentence about Henrietta's flock of chickens is B. The rest of the neighborhood's chickens, as it properly compares Henrietta's flock to those of her neighbors.
Step-by-step explanation:
The question presented requires the correct completion of the sentence regarding Henrietta's flock of chickens. The most logical and grammatically correct answer is B. The rest of the neighborhood's chickens. This option provides a clear comparison between Henrietta's flock and the flocks owned by others in her neighborhood, creating a parallel structure in the sentence. It fills in the required information about who or what Henrietta's flock produced more eggs than, thus completing the comparison appropriately.