What symptoms might indicate an allergic reaction in children?

The symptoms listed in the correct choice are indicative of allergic reactions in children. Dry skin and rashes can occur as a result of contact dermatitis or other allergic responses, such as reactions to certain foods or environmental allergens like pollen or dust mites. Sneezing is a common symptom associated with respiratory allergies, particularly in cases like hay fever. Dark circles under the eyes, often referred to as "allergic shiners," can occur from inflammation and congestion due to allergy-related sinus issues. These symptoms collectively highlight the body's hypersensitivity to allergens, making this option the most accurate in the context of identifying allergic reactions in children.