In chapter 32, what happens to huck that calls attention to his presence on the little farm?

a. aunt sally spots him and runs outside.
b. he trips over a wheel barrow that makes a lot of noise.
c. one of the children sees him looking through a window.
d. dogs bark and howl at him.

I believe the answer is: D. Dogs bark and howl at him.

before hearing the barks and the howl, Huck was purposely wandering in places that completely unfamiliar to him in. When the dogs at the farm barks and howl at him, Huck noticed the existence of the farm and decided to go there to rest for a while.

In Part 7, Chapter 32, of "The Adventures of Huckleberry Finn", what calls attention to his presence on the little farm is option D. Dogs bark and howl at him. When Huck was half-way, first a dog, and then another got up and went for him. As he kept still he was surrounded by dogs that were coming from everywhere, howling and barking at him.

  . 2 is the