Which of the following is a signature drink at Outback?

The Outback Margarita is a signature drink at Outback Steakhouse, known for being a standout option on their drink menu. This margarita typically features a blend of tequila, lime juice, and other mixers, reflecting the restaurant's Australian theme with a twist on a classic cocktail.

The choice of this drink as a signature option is indicative of Outback's focus on providing a unique dining experience that showcases their own take on popular beverages. This drink often pairs well with the steak and other hearty dishes on the menu, enhancing the overall dining experience.

Other options, while they may be popular cocktails, do not specifically represent the character of Outback Steakhouse as effectively as the Outback Margarita, which is tailored to fit the restaurant's brand and customer preferences.