A Patient Is Scheduled for a Contraction Stress Test (CST)

A patient is scheduled for a contraction stress test (CST) at 36 weeks gestation. The nurse is aware that a successful testing is dependent on which factor?

A) Whether Braxton-Hicks contractions are occurring
B) Whether uterine contractions can be stimulated
C) If the mother is not overly tired or anxious
D) If the fetus is in an awake cycle and active