Liam should choose the option that includes "steamed broccoli and carrots, grilled salmon, an apple, and low-fat milk."
This option is high in vitamins and minerals from the vegetables and fruit, provides protein from the grilled salmon, and is lower in fats and carbohydrates compared to the other choices. The other options either include fried foods, high-carb sides, or sugary drinks, which do not fit Liam's criteria.