Which statement describes the function of the OSI transport layer?

A.
It segments data from the system of the sending host and reassembles the data into a data
stream on the system of the receiving host.

B.
It provides the connectivity and path selection between two host systems that may be located
on geographically separated networks.

C.
It defines how data is formatted for transmission and how access to the physical media is
controlled.

D.
It establishes, manages, and terminates sessions between two communicating hosts.

Explanation:
http://en.wikipedia.org/wiki/Transport_layer