Answer:
a) María Teresa
Step-by-step explanation:
María Teresa is the character that can be described as concerned about money. When the novel opens, Mate (as she is called throughout the novel) is a little girl, and she is concerned with things that are appropriate for her age. She worries about which clothes to wear, and how to get people to stop treating her like a baby. As she grows up, she is still slightly spoiled as she was when she was little, but she also becomes stronger and more mature.