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
In a case of intrauterine growth retardation, the most dependable method of determining fetal well being is : 
Select and explain. 
A. Ultrasonic fetal cephalometry, B. Contraction stress test (oxytocin challenge test), C. Amniotic fluid triglyceride, D. Uteroplacental blood flow
B: Contraction stress test (oxytocin challenge test)
Answer: B: Contraction stress test (oxytocin challenge test) 
Explanation: Contraction stress test (oxytocin challenge test)