What does "a strong link" suggest about smoking?

The phrase "a strong link" indicates a significant and direct relationship between smoking and risk factors, such as health issues. When something is described as having a strong link, it implies that there is a clear connection, often supported by evidence or research, that shows how one element significantly influences another. In this context, it suggests that smoking is associated with increased risk for various health problems, reinforcing the idea that it is detrimental rather than beneficial.

The other options do not accurately convey the implications of "a strong link." For instance, suggesting that smoking is unrelated or should be encouraged contradicts the idea that it poses risks. Similarly, while the phrase does not indicate a positive influence, it unequivocally points towards an association with risk rather than any form of benefit. Hence, identifying "a strong link" with risk is the most accurate interpretation.