Which of the following questions exemplifies an open-ended question?

Open-ended questions are designed to encourage a full, meaningful answer using the subject's own knowledge and feelings. They often begin with "how," "what," or "why," and they require more than just a yes or no response, allowing for deeper discussion and exploration of thoughts and feelings.

The question about how the person's week has been is a prime example of an open-ended question. It prompts the respondent to reflect on their experiences and feelings from the week, inviting them to share as much detail as they choose. This can lead to rich dialogue and provides insights into the respondent's emotional state or experiences.

In contrast, the other questions are more closed in nature, allowing for limited responses. They typically solicit a simple affirmation, negation, or specific information rather than encouraging expansive discussion.