[单项选择]

Passage Five
It’s easy to find nurses at Seton Medical Center. They wear badges that tell where the nurses are. Even if they are in the halls, the devices can track the nurses.
Hill-Rom made the tracking badges that use infrared signals. The system is wireless and can tell when a nurse goes to a patient’s room. In the past, time was wasted trying to find the nurses. A wall unit lets staff talk to nurses and patients. Hill-Rom has sold more than 850 systems to hospitals.
Many nurses do not like the locator badges. They fear the devices will hear their conversations and spy on them. At Eden Medical Center, nurses protested against the Hill- Rom devices. The badges made nurses feel like they were being watched to see if they did their job right. Although the nurses hid the badges, the hospital found them. Nurses felt Big Brother was watching them.
Eden Medical Center wants to give good patient care. The system can see how long it ta
A. tape conversations
B. monitor break time
C. make them work harder
D. listen to conversations and watch what they do