Which of the following is a major contributor of empty calories in american diets

I believe the answer is Sugar-sweetened beverages

Empty calorie is term used for food with high amount of calorie but have little to none nutrient. This food will give energy but not giving the nutrient that the body need to be healthy. Typical food would be the one with high sugar or fat content. Consumption of empty calorie food will provide more calorie, make the person easier to gain weight.

well for one plants are always the producer, so a is the answer. a wolf is more of the consumer(predator) and the deer is the prey so i know those two are out of the question. also mushrooms are fungi/fungus so a is the producer.