Why did Duane's nickname change to Smoke?

The choice of "He grew taller and gained weight" as the reason for Duane's nickname changing to Smoke suggests a connection between physical changes and a potential shift in how he is perceived by others. The name "Smoke" can evoke imagery of someone who is more imposing or significant, possibly tied to height and weight gain, which can alter a person's overall presence. When an individual undergoes such physical transformations, it might lead to new nicknames that reflect those changes, whether they signify strength, speed, or prowess.

The other options, while intriguing in their own right, do not provide as compelling a rationale in this context. For instance, speed linked to running might suggest a nickname like "Flash" rather than "Smoke." Additionally, gaining weight and height can denote maturity or presence, which aligns more closely with the nickname “Smoke,” potentially underscoring a persona that carries weight or significant presence in social contexts.