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
Consider the following 1. Reactive NST 2.Absence of deceleration 3.Sinusoidal pattern Which of the above findings in an antepartum CTG indicate fetal well being : 
Select and explain. 
A. 1 and 2 only, B. 2 and 3 only, C. 1 and 3 only, D. 1, 2 and 3
A: 1 and 2 only
Answer: A: 1 and 2 only 
Explanation: Reactive NST, i.e. acceleration with fetal movements indicates a healthy fetus.
“Absence of deceleration in the NST is reassuring. Absence of accelerations in the NST may be a sign of fetal compromise.”
Fernando Arias 3/e, p 19
“Sinusoidal pattern is observed with serous fetal anemia, whether from D iso immunization, ruptured vasa previa, fetomaternal haemorrhage or twin to twin transfusion.”
Wiiliams 23/e, p 420