For what reason would a customer receive a BOGO senior night offer?

The reason a customer would receive a BOGO senior night offer is based on presenting a full senior card. This validation serves to specifically identify and recognize seniors who are eligible for the offer. By requiring the presentation of a senior card, Denny's ensures that the promotion is used appropriately and benefits those who meet the age criteria, fostering loyalty and providing value to a specific customer demographic.

In the context of promotions, targeting specific age groups, such as seniors, allows the restaurant to create tailored experiences that can resonate with that audience, encouraging them to visit more frequently. This strategic focus can enhance customer satisfaction among seniors and contribute to a positive dining experience. The other choices do not align with the promotional criteria and are therefore not valid reasons for receiving the senior night offer.