This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Amniotic Fluid Dynamics, Subject name: Gynaecology & Obstetrics
[{'content': 'The pH of amniotic fluid is: \nSelect and explain. \nA. 6.8 to 6.9, B. 8.1 to 8.3, C. 7.4 to 7.6, D. 6.7 to 6.8', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Amniotic Fluid: pH - Alkaline (7.4-7.6) Specific gravity- 1.008-1.010 Colour- Straw colour', 'role': 'assistant'}]