单选题 Which of the following assessments indicates fetal distress?
A. Fetal scalp pH of 7.14.
B. Fetal heart rate (FHR) of 144 beats/minute.
C. Acceleration of FHR with contractions.
D. Long-term variability.

【正确答案】 A
【答案解析】A scalp pH of less than 7.25 indicates acidosis and fetal hypoxia. The other options are normal responses of a healthy fetus to labor.