A randomized controlled trial recruited 240240 adult daily smokers who volunteered to test four flavors of an e-cigarette for 2626 weeks. Each participant was blinded to flavor assignment, and participants who left the trial were recorded. At the end of the trial, researchers assessed smoking cessation. To which population do the results of this trial most appropriately generalize?

The population of daily smokers similar to those who volunteered for a blinded 2626-week e-cigarette trial.

Only the participants who completed the 2626-week trial.

Only smokers who receive one specific flavor of e-cigarette in the trial.

The population of all current smokers worldwide.

A randomized controlled trial recruited 240240 adult daily smoker...

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