Answer:C)Extranet
Step-by-step explanation: Extranet is the network on private basis for sharing of the organizational information with the vendors, employees, customers,suppliers etc. It uses the internet service for the distribution of the data outside of the company in extended form.Electronic data interchange is used for exchanging of large amount of information.
Other options are incorrect because intranet is the internet service which works within enterprise, chaosnet is protocol for transmission of data in full duplex form and ethernet is the communication with the help of protocol in traditional manner.