Final answer:
The nurse interprets option C) "I'll read this later. I don't have my glasses." as a possible indication of healthcare illiteracy.
Step-by-step explanation:
The nurse interprets option C) "I'll read this later. I don't have my glasses." as a possible indication of healthcare illiteracy. This statement suggests that the patient may have difficulty reading the brochure due to not having their glasses, indicating a potential issue with their ability to understand healthcare information. The patient's statement in option B) "Can you give me another brochure for my wife?" may be seen as a request for additional information for their spouse, but it does not necessarily indicate healthcare illiteracy.