Final answer:
The major sources of nutrients and calories globally are rice, wheat, and barley, which are staple food crops essential for providing dietary energy.
Step-by-step explanation:
The three major sources of nutrients and calories for the global human population are Option 1: Rice, Wheat, Barley Option 2: Fruits, Vegetables, Nuts Option 3: Corn, Soybeans, Wheat Option 4: Dairy Products, Meat, Seafood. Considering the importance of staple food crops in providing dietary energy, the correct answer is Option 1: Rice, Wheat, and Barley. These crops are critical for global food security and form the basis of most humans' diets. While other foods like fruits, vegetables, and proteins are essential for a balanced diet, rice and wheat are among the most important cereals that supply the majority of calories for the global population.