A multigravid client at 34 weeks' gestation with premature rupture of the membranes tests positive for group B streptococcus. The client is having contractions every 4 to 6 minutes. Her vital signs are as follows: blood pressure, 120/80 mm Hg; temperature, 100┬░ F(37.8┬░ C); pulse, 100 bpm; respirations, 18 breaths/minute. Which of the following would the nurse expect the physician to order?

D Intramuscular cefaclor(Ceclor). B Intravenous gentamicin sulfate(Garamycin). A Intravenous penicillin. C Intramuscular betamethasone(Celestone).