Which two functions are performed at the MAC sublayer of the OSI data link layer? $($Choose two.$)$

Implements a trailer to detect transmission errors.

Places information in the frame that identifies which network layer protocol is being used for the frame.

Adds Layer $2$ control information to network protocol data.

Enables IPv$4$ and IPv$6$ to utilize the same network interface and media.

Provides synchronization between source and target nodes.