Final answer:
The least appropriate menu item for a client taking phenelzine, an MAOI, is a cobb salad with blue cheese and roquefort salad dressing due to the high tyramine content.
Therefore, option B is correct.
Step-by-step explanation:
A client prescribed phenelzine (Nardil) for depression must avoid certain foods because this medication is a monoamine oxidase inhibitor (MAOI). MAOIs can interact with foods high in tyramine, which can lead to dangerously high blood pressure (hypertensive crisis). Of the options given, 'cobb salad with blue cheese and roquefort salad dressing' would be the least appropriate for the client to order. Blue cheese and roquefort, which are aged cheeses, tend to be high in tyramine. Therefore, patients on phenelzine should avoid consuming these foods.