A pregnant woman states that she is concerned about her gums because she has noticed they are swollen and have started to bleed. What would be an appropriate response by the nurse?

A) "Your condition is probably due to a vitamin C deficiency."
B) "I'm not sure what causes swollen and bleeding gums, but let me know if it's not better in a few weeks."
C) "You need to make an appointment with your dentist as soon as possible to have this checked."
D) "Swollen and bleeding gums can be caused by a change in hormonal balance during pregnancy."