Which of the sentences below best expresses the essential information in the highlighted sentence in the passage? Incorrect choices change the meaning in important ways or leave out essential information. A. Incomplete physiological development may partly explain why hearing stories does not improve long-term memory in infants and toddlers. B. One reason why preschoolers fail to comprehend the stories they hear is that they are physiologically immature. C. Given the chance to hear stories, infants and toddlers may form enduring memories despite physiological immaturity. D. Physiologically mature children seem to have no difficulty remembering stories they heard as preschoolers.