Final answer:
The best theme expressed in the selection is that experiences in life do not always turn out as anticipated, which aligns with various narratives and advice in the text pointing towards life's unpredictability and the need for resilience and adaptability.
Step-by-step explanation:
Among the provided options, the statement that best expresses a theme in the selection is A) Experiences in life do not always turn out as anticipated. This theme is reflected in the various narratives and advice given throughout the excerpts. Life is full of uncertainties and the future isn't always predictable, as the text suggests several times. A theme involves a central message or insight into life that the writer conveys through various characters, scenarios, and events in a text. In this case, the notion that life's path is not always straightforward or predictable, and that one must be adaptable and resilient in the face of life's unpredict abilities, emerges as a key theme.
The presented excerpts touch upon various life challenges such as crises of identity, unexpected changes in relationships, and career uncertainties. They emphasize the importance of adaptability, the value of education, the influence of parental guidance, and the need to embrace change and challenges as part of the journey. This further cements the theme that life's experiences may not align with our initial expectations, and that we must be prepared to navigate through unforeseen circumstances.