A 34-year-old gravida 3, para 2 is experiencing severe back pain with each contraction. She is extremely uncomfortable and upset because she never had this type of pain with her other labors. What interventions are most likely to help in this situation?

Hypnosis, imagery, and slow chest breathing

Comfort measures, intermittent labor support by the nurse, and reassurance that the pain is temporary

Effleurage, ambulation, and frequent position changes

Counterpressure with a fist or tennis ball to the lower back