A 25-Year-Old Primigravida Client Is in the First Stage of Labor

A 25-year-old primigravida client is in the first stage of labor. She and her husband have been holding hands and breathing together through each contraction. Suddenly, the client pushes her husband's hand away and shouts, "Don't touch me!" This behavior is most likely:

A) abnormal labor.
B) a sign that she needs analgesia.
C) normal and related to hyperventilation.
D) common during the transition phase of labor.