Which of the following is a requirement for the design?

An engineer is performing a predictive wireless design for a medical treatment environment, which requires data and voice services.

Which of the following is a requirement for the design?
A . overlapping -72 dBm coverage from two access points
B . overlapping -67 dBm coverage from two access points
C . continuous -67 dBm coverage from one access point
D . continuous -72 dBm coverage from one access point

Answer: C