Final answer:
The best food group to select for a long trip with limited food would be carbohydrates.
Step-by-step explanation:
The best food group to select from if you were going on a long trip and could only take 10 pounds of food would be carbohydrates.
Carbohydrates are an immediate source of energy and are essential for cellular function.
They provide the body with the energy it needs to sustain physical activity and mental processes.