The Session Layer of the OSI model:

a$.$ on the sending computer, is responsible for formatting and coding high$-$level data that comes from applications into a form that is acceptable for transmitting on the network.

b$.$ sets up$,$ manages, and terminates connections between applications on source and destination computers.

c$.$ is the software entry point for sending messages to and from an application's users.

d$.$ serves as the primary interface for application software to interact with networks.