Which of the following options can help build sales behind the bar?

The option indicating that all listed strategies can help build sales behind the bar is correct because each of these approaches can effectively attract more customers and encourage increased spending.

Offering free drinks for birthdays creates a celebratory atmosphere that can draw in groups, as friends and family may gather to celebrate together, leading to additional orders for drinks and food. This not only enhances the experience for the birthday guest but also increases overall bar sales from their party.

Having a happy hour special is a well-recognized tactic in the bar industry that incentivizes patrons to come in during specific hours when drinks are offered at lower prices. This strategy often increases traffic during typically slow periods, encouraging customers to try different drinks, order more, and ultimately raise sales volume.

Providing free appetizers can entice customers to spend more time at the bar, enhancing their experience and encouraging them to order additional drinks. The inclusion of food can also facilitate a social environment, leading patrons to consume more overall while enjoying the complimentary items.

Each of these strategies enhances customer experience and can lead to increased sales, making the collective notion of utilizing all of these tactics effective for boosting business behind the bar.