Final answer:
The provided information does not include a clear reason for Randy's move from Serenity; it might involve societal pressures or personal conflicts, but without more context, a definitive answer cannot be given. Therefore, the correct option b) His house is destroyed in a fire.
Step-by-step explanation:
The exact reason why Randy has to move out of Serenity is not provided in the information given. Exploring options a) through d) and the additional context does not clarify a specific answer. If we consider thematic elements like someone trying to build a new life or challenging social norms, we might infer that Randy may need to move due to societal pressures, such as being ostracized for challenging socially accepted norms or feeling disconnected from society due to fame.
However, without more context or explicit information from the text, we cannot confidently determine why Randy has to move. In literature, characters often face pivotal decisions due to various external or internal conflicts, which might require them to leave a place they consider home.Therefore, the correct option is b) His house is destroyed in a fire.