Which of the following is an example of an open-ended question?

An open-ended question is designed to encourage a full, meaningful answer and invites the respondent to share their thoughts and feelings rather than simply providing a yes or no response. The question, "What features are important to you?" exemplifies this type of inquiry as it prompts the individual to elaborate on their preferences and priorities. This kind of question can lead to a more in-depth conversation, allowing for the exploration of specific desires or needs that the customer may have.

In contrast, the other options tend to restrict responses to simpler, more direct answers. For example, "Can I help you?" could lead to a yes or no response without much detail. Similarly, "Do you like blue or brown?" limits the person to a choice between two colors, and "Is this all for you today?" again does not encourage elaboration, as it expects a straightforward response about the shopping items. Thus, the question about the features encourages engagement and provides valuable insights that can enhance customer service interactions.