Third person plural pronoun is THEY.
If you want to create a possessive pronoun out of that one, that would be THEIRS.
Possessive pronouns, as the name itself says, determine some kind of possession. For example:
Is this books yours? - No, it's theirs.
This question seems to be incomplete. However, there is enough information to find the right answer.
Answer:
Both the trees and Esperanza have "skinny necks and pointy elbows", and both don´t belong where they are. The trees should grow in nature, not in a city. Similarly, Esperanza feels like she doesn´t belong in the neighborhood. Furthermore, the resilience of those trees that "grew despite concrete" symbolizes Esperanza´s resilience to persevere notwithstanding the impediments imposed by her being poor.
Explanation:
The question refers to the section Four Skinny Trees from the book “The House on Mango Street,” by Sandra Cisneros.
There, the four trees found in her front yard symbolize Esperanza´s experience of feeling like an outsider and wanting to reach out for something else.
By being privy to Granny’s death, the reader can infer much about her life. The title describes the enormous hurt and humiliation that has secretly festered in her mind and heart for sixty years. Her great pride was devastated by her jilting; although she married a good man, raised a family, and managed a farm by herself after her husband’s death, she never totally got over the shock and disappointment of George’s rejection. The fact that she has saved George’s letters suggests how much he continued to mean to her in her heart and how the pain of her jilting remained with her for sixty years.
