Final answer:
In the conversation about Sophie's happiness, Sam expresses his deep concern for her well-being, indicating that he cannot give her away unless she's genuinely happy. This sentiment aligns with option: (a) He can't give her away unless she's really happy.
Step-by-step explanation:
Sam's statement implies a fatherly care and a desire for his daughter's genuine happiness before any significant life decisions or transitions take place. His stance underscores the importance of Sophie's happiness and contentment in crucial life choices, showcasing a father's genuine concern for his daughter's emotional well-being.
This demonstrates a loving and attentive parental approach, prioritizing Sophie's happiness above external factors or societal expectations.