Question: However, there is a big difference in how these symptoms come on. With a? cold, the symptoms usually come on slowly and are milder. A person may feel lethargic and tired for several days before the cold becomes apparent. In? contrast, the flu usually comes on suddenly. Which statement best summarizes the information People may not realize they have a? cold, but they always know they have the flu because they feel very tired and weak. B. People do not feel the first symptoms of a cold and flu in the same way. People may feel sluggish for a few days. They do not have their usual energy. People do not feel this way at first with the flu. People who get the flu feel sick right away. C. On the other? hand, there is a big difference in how these symptoms come on. With a? cold, the symptoms usually come on slowly and are not strong. In? contrast, the flu comes on fast. D. The flu comes on? fast; a cold comes on more slowly.