No change. Also, for future reference, you might want to try reading out the sentence with each option to see what sound right.
Answer:
The universal sign for choking is hands clutched to the throat. If the person doesn't give the signal, look for these indications: Inability to talk. Difficulty breathing or noisy breathing. Squeaky sounds when trying to breathe.
Explanation:
As Scout gets older, she starts to understand how to cope with Calpurnia better and ends up having a stronger relationship with her.