Which of the following correctly describe steps in the OSI data encapsulation process?（）

• A、Transport layer divides a data stream into segments & adds reliability & flow control information
• B、Data link layer adds physical source & destination address & an FCS to the segment
• C、Packets are created when the network layer encapsulate a frame with source & destination host address& protocol related control information
• D、Packets are created when the network layers adds layers 3 address & control information to a segment
• E、The presentation layer translated bits into bits into voltages for transmission across the physical link