Final answer:
Maria, a lacto-vegetarian, would order a cheese lasagna with steamed broccoli and iced tea for lunch, which excludes meat but includes dairy.
Step-by-step explanation:
Your friend, Maria, who is a lacto-vegetarian, will order a meal that excludes meat, poultry, and fish, but can include dairy products. When out for lunch with you, the best option that fits her dietary preference is C. A cheese lasagna with a side of steamed broccoli and iced tea. This selection contains pasta and cheese, which are acceptable in a lacto-vegetarian diet, as well as cooked and fresh vegetables in the form of steamed broccoli and iced tea, making it a nutritious and compliant choice for Maria.