sounds like a homework Q not a real Q, this should reflect back on what you have been studying, what does your book say? Its not a great Q if they are trying to make a point.
In general hot dogs are discouraged as they are associated with numerous choking incidents. Beyond that, it would depend on the dietary restrictions of the particular residents.
Please check with the clinical nurse supervisor as to whether any of the residents have food allergies, especially nuts, which may result in anaphylactic shock, even from the mere smell of nuts.
As we have no idea whether any residents have any allergies we have no idea what may not be served. In any case if a resident cannot eat something they can choose something else. There is no need for everyone to go without.
Avocados and tiny bits of meat.