A message M is encapsulated by the TCP, IP and Ethernet protocols in that order as it travels down a protocol stack. What does the frame look like when observed on the Ethernet link? T for TCP header, similarly for I and E, and M for the message.

A. TIEM

B. ITM

C. EITM

D. MTIE

The answer is "option C"

Explanation:

The EITM system was established in July 2001 with a call for proposals for the NSF training institute. The USA also offers courses in this European country. This program provides mechanical quantum and philosophy lectures, as well as another philosophical and applied course that varies year after year, that's why this option is correct and others are wrong, which can be defined as below:

Option A, and Option D both are incorrect because it's not a part of the TCP. In option B, It is used in transaction, that's why it is incorrect.