Answer:
B. the bird’s presence is surprising and unusual
Explanation:
I got it right.
When the red ant slips inside the turtle's shell, the turtle withdrew its head, and limbs into the shell, thus crushing the ant.
The turtle stopped its voyage to rest, when all of a sudden, an ant crawled inside its shell, which bothered the turtle. This is why it decided to kill the ant, and just keep on walking afterwards, as if nothing happened at all. The ant is not mentioned anymore in the story because it is irrelevant.
This is best described as an essential past participle phrase.
It is essential, because the participle explains what happened to the bone to make it heal slowly. It is a past participle, because the bone is already broken, and has already healed (or started to heal).
The answer is: C
Cause I had it before I got it Right