Final answer:
The best response by the nursing assistant would be to gently ask the resident if she realizes that her shoes do not match and offer to help her find a matching pair.
Step-by-step explanation:
The best response by the nursing assistant would be (A) to gently ask the resident if she realizes that her shoes do not match and offer to help her find a matching pair.
It is important for the nursing assistant to approach the situation with empathy and understanding. Alzheimer's disease can affect a person's ability to make logical decisions or recognize mistakes. By gently bringing attention to the mismatched shoes and offering to help find a matching pair, the nursing assistant can assist the resident without embarrassing or teasing her.