This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Gynaecology & Obstetrics
[{'content': 'All are features of fetal distress except : \nSelect and explain. \nA. Meconium staining of the liquor amnii, B. Hea rate less than 100, C. Involuntary muscle movements, D. Fetal scalp blood pH 7.3', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Fetal scalp blood pH 7.3', 'role': 'assistant'}]