This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth and development, Subject name: Pediatrics
[{'content': 'Developmental delay should be suspected, if the developmental quotient (DQ) is below _____(%) \nSelect and explain. \nA. 80, B. 77, C. 70, D. 65', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Developmental delay should be suspected if the development quotient(DQ) is below 70%. It is calculated as: DQ= Development age/Chronological age * 100 In preterm infants, the corrected age rather than postnatal age is used till two years of age. For example, a child born at 32 weeks gestation (gestational age) seen at 12 weeks of age (postnatal age), should be considered as a 4-week old (corrected age) child. Ref: Ghai essential Pediatrics 9th edition Pgno: 50', 'role': 'assistant'}]