Which sentence is a run-on sentence? A. Most humans eat around 3 to 5 pounds of food every day. B. A blue whale eats up to 6,000 pounds of food per day, which is only 2 percent of its body weight. C. Elephants eat large amounts of food, they can consume 600 pounds of food in a day. D. Hummingbirds burn food quickly; they must eat two to three times their body weight every day.