This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Antenatal Care & Assessment of Fetal Well Being, Subject name: Gynaecology & Obstetrics
[{'content': 'Criteria for high risk infant: \nSelect and explain. \nA. Have not taken 100 days folic acid, B. Working mothers, C. Preeclampsia in pregnancy, D. Malpresentation during birth', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (B) Working motherswww.ncbi.gov.india(Ref: )Risk InfantsBirth weight < 2.5 KgTwinsBirth order >=4Artificial FeedingWt. <=70% of expected weightFailure to gain weight during 3 successive monthsChildren with PEM/DiarrheaWorking mother/One parent', 'role': 'assistant'}]