Final answer:
Paragraph 2 supports the idea that family ties can be very deep and strong, as it describes the strong emotional bond between Stuart and his sister Marissa.
Step-by-step explanation:
The paragraph that best supports the idea that, for some, family ties can be very deep and strong is Paragraph 2. In this paragraph, it is revealed that Stuart's heart was broken when his sister Marissa went overseas, which indicates a deep emotional connection and the strength of their sibling bond. Marissa is waiting to surprise Stuart, which shows the love and effort family members put into caring for each other. This evokes the theme of strong family ties since Stuart considers the time without his sister as the longest year of his life, and she is equally eager to be reunited with him.