In the conversation provided, the nursing assistant is primarily asking open-ended questions. These types of questions invite the patient to provide more detailed responses and share their experiences and feelings. For example:
- "Oh my, what happened?"
- "How does it feel when you take a deep breath?"
These prompts encourage the patient to elaborate on their symptoms and feelings rather than simply answering with a yes or no, which would be characteristic of closed-ended questions.
Therefore, the correct response is open-ended questions.