Concept:Alternative conceptions are children's own ideas that differ from accepted scientific explanations, often based on their intuitive understanding and prior experiences.Explanation:Children form alternative conceptions naturally as they try to make sense of the world. These ideas come from their everyday observations and reasoning, not from direct instruction. Such conceptions are not purely illogical or random; instead, they reflect the child's current mental model or intuitive theory. Teachers should recognise these as a normal part of learning and use them to understand how children think. Ignoring or dismissing these ideas is not helpful. Instead, teachers should respect them and design activities to guide children toward correct scientific concepts. Option C correctly states that alternative conceptions represent children's intuitive theories. Options A, B, and D are incorrect because these conceptions are common, not purely erroneous, and teachers must attend to them.Answer:C. represents their intuitive theories