A. Within a home
B. Within a building
C. Within campus
D. Within a city
I got this question in an international level competition.
I’d like to ask this question from Cordless Telephone Systems topic in division Introduction to Wireless Communication Systems of Wireless/Mobile
Easy explanation: Cordless telephones are used in homes, in offices, on campus, at trade shows. But due to their limited coverage they cannot cover a whole city.