How is the grilled BBQ chicken prepared?

The grilled BBQ chicken at Texas Roadhouse is prepared by marinating the chicken before grilling it. This marination process allows the chicken to soak in a blend of flavors, enhancing its taste and tenderness. The grilling method adds a smoky flavor and creates the characteristic charred exterior, making it a flavorful and juicy dish.

The other preparation methods suggested in the options do not align with the traditional methods used for this dish. For instance, freezing the chicken before grilling would not yield the same texture or flavor as marinating, and deep frying would focus on a different cooking style that contrasts with the grilled preparation. Cooking in a smoker is also a different technique that would impart a distinct flavor different from the marinated grilled approach utilized for BBQ chicken.