For which patient would a labor and delivery nurse be most likely to initiate preterm labor interventions for?

A patient who is at 37 weeks who is experiencing intermittent lower back pain.

A patient who is at 38 weeks whose membranes have ruptured with clear fluid.

A patient who is at 19 weeks and carrying twins who is experiencing severe constipation.

A patient who is at 35 weeks who has been feeling five or more contractions in an hour.