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
Indication of fetal distress is : 
Select and explain. 
A. Decrease in fetal scalp blood pH, B. Meconium staining, C. Late deceleration of hea rate, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: All of the above