Final answer:
The contraindication for tocolytic therapy is fetal gestational age less than 37 weeks.
Step-by-step explanation:
The contraindication for tocolytic therapy is d. fetal gestational age less than 37w. Tocolytic therapy is the use of medications to suppress contractions in order to delay preterm labor. However, if the gestational age is already less than 37 weeks, it is considered late preterm or full term, and tocolytic therapy is no longer recommended as the baby is considered mature enough to be safely delivered.