_________ sales channels occur in person, where a customer can ask questions before purchasing.

The correct answer is "Physical." Physical sales channels refer to environments where transactions happen face-to-face, such as brick-and-mortar stores. In these settings, customers can interact directly with sales representatives, allowing them to ask questions, seek clarification, and receive immediate feedback. This direct interaction can enhance the customer experience and provide valuable insights to the salesperson regarding the customer's needs and preferences.

In contrast, online sales channels are conducted via the internet, limiting interactive dialogue in real-time. While direct sales can also occur in various formats, they might not necessarily involve a physical presence or in-person interactions. Retail channels include both physical stores and online platforms, but when specifically referring to an in-person experience, the term "physical" is most accurate. Therefore, identifying physical sales channels emphasizes the importance of direct, personal engagement in the purchasing process.