Which of the following statements are correct? 1. According to Erikson, the part of the body on which their attention is focused and the life tasks which preoccupy them, change radically from one stage to another. 2. A key word to describe children's thought by Piaget is 'unsystematic'. 3. Preoperational children tend to focus their attention only on the most compelling aspect of an event. 4. Perceptual constancy appears easily in infancy, but object, constancy develops relatively slow. Select the correct answer

Answer: Option A