Gateways: a. process all messages, even if the messages are not explicitly addressed to them b. can translate one network protocol into anotherc. are less complex than bridgesd. are most often used as the interface between two or more networks that have similar data link and network layer protocolse. cannot perform a routing function

B)can translate one network protocol into another

Explanation: Gateway is the element that acts between the two networks that persist protocols that are different from each other. It helps in the translation of one protocol into another protocol and thus it is known as protocol converter.

Other options are incorrect because they don't work on explicit messages, complexity is present in gateways as compared with bridges and is used between dissimilar protocols not data.Thus, the correct option is option(B).