a) Large cloud providers with geographically dispersed sites worldwide, therefore, achieve reliability rates that are hard for private systems to achieve
b) Private data centers tend to be located in places where the company or unit was founded or acquired
c) A network backbone is a very low-capacity network connection
d) None of the mentioned

Answer: c
Explanation: On the Internet, an Internet backbone consists of the high-capacity routes and routers that are typically operated by an individual service provider such as a government or commercial entity.