Read the excerpt from chapter 6 of Animal Farm. All the animals remembered passing such resolutions: or at least they thought that they remembered it. The four young pigs who had protested when Napoleon abolished the Meetings raised their voices timidly, but they were promptly silenced by a tremendous growling from the dogs. Then, as usual, the sheep broke into "Four legs good, two legs bad!” and the momentary awkwardness was smoothed over. Finally Napoleon raised his trotter for silence and announced that he had already made all the arrangements.

What statement best explains the impact of the dogs growling in this passage?

It illustrates a growing sense of community among the animals.
It reveals new information about Napoleon in a small amount of text.
It highlights the ways in which the animals are being silenced and controlled.
It shows how Napoleon’s leadership has progressed in a short period of time.