Answer: B) A direct private network that creates a "private tunnel" within the Internet to connect to the corporate server
Explanation: VPN(Virtual Private Network) is the network that acts a the private tunnel from the device servers to the internet service.It helps in securing the network from online traffic.
Other options are incorrect because it used for providing private network server service not using company's server. Direct URL is not used for the creation of the private section .
Direct P2P(peer-to-peer) connection is not used by company for open access rather the network node as or points in the network can only use it. Thus, the correct option is option(B)