Which of the following best describes an open-ended question?

An open-ended question is designed to encourage a comprehensive response, allowing the respondent to elaborate, share opinions, or explore ideas more deeply. This type of question typically invites the person answering to provide more than just a simple answer, fostering a dialogue or discussion that can reveal insights, experiences, and much richer information.

For example, asking "What do you think about the new features in macOS?" invites the respondent to express their thoughts and feelings, potentially leading to a more meaningful conversation about their experiences. This approach is particularly beneficial in settings like technical support or customer feedback, where understanding the user's perspective can lead to improved service or product development.

The other options do not describe open-ended questions accurately. Questions with a single correct answer are typically closed, as they limit responses to a specific piece of information. Yes-or-no questions also constrain the reply and do not encourage elaboration. While vague and unfocused questions may lead to varied responses, they lack the clarity and purpose of a well-constructed open-ended question that seeks to elicit detailed information.