B- help someone make changes due to a medical issue or ethical concern.
Explanation:
Hi! I am going to say (B) because I personally have a specialized diet because of a medical issue. (B) makes the most sense, and while (C) is also a good choice, I think 'specialized diet' is a little too specific for (C) to apply. The other options could also constitute a diet change, but it sounds like the answer they are looking for is more specific.
Sorry if I got it wrong! The question is a little vague sounding, so it just depends how you look at it.
