Final answer:
The menu item that should not be included on a hospital dinner menu is Raw Seafood option (C) due to the risk of foodborne illnesses for patients with potentially compromised immune systems.
Step-by-step explanation:
The menu item that should NOT be included on the hospital dinner menu is Raw Seafood option (C). Serving raw or undercooked food in a hospital setting is a health risk, especially considering that many hospital patients may have compromised immune systems and are more susceptible to foodborne illnesses. Foods like grilled chicken, steamed vegetables, and mashed potatoes are typically safe options because they are cooked, which helps eliminate harmful bacteria.