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': 'Fetal growth is maximally affected by ____________ \nSelect and explain. \nA. GH, B. Insulin, C. Coisol, D. Thyroxin', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Fetal growth is affected by Fetal hormones Fetal growth factors (IGF1 &2) Placental factors Maternal factors Amongst the foetal hormones, thyroxine and insulin have role in tissue accretion and differentiation in foetus. Growth hormone levels are high but are not known to have any influence on the foetal growth. Ref- Ghai , 9th edition , Chap 2.', 'role': 'assistant'}]