Which of the following best describes the Transport layer of the OSI model?

You are employed as a senior administrator at ABC.com.
You are responsible for running training exercises for trainee administrators. You are currently
covering the layers of the Open Systems Interconnect (OSI) model.
You are explaining the Transport layer.
Which of the following best describes the Transport layer of the OSI model?

A.
The Transport layer deals with the transmission and reception of the unstructured raw bit
stream over a physical medium.

B.
The Transport layer controls the operation of the subnet.

C.
The Transport layer deals with error-free transfer of data frames from one node to another over
the physical layer.

D.
The Transport layer makes sure that messages are conveyed error-free, sequentially, and with
no losses or duplications.