Final answer:
Henry immediately sits next to August and offers a friendly smile. He does this because he's kind and wants to be friends, which makes August feel relieved.
Step-by-step explanation:
The correct answer is b) Henry immediately sits next to August and offers a friendly smile. He does this because he's kind and wants to be friends, which makes August feel relieved. By sitting next to August and offering a friendly smile, Henry is showing acceptance and making August feel welcomed and included.