Answer: The options are given below:
a. sockets
b. packets
c. pipes
d. procedures
The correct option is C. Pipes.
Explanation: In practice, a pipe is a medium of connection between two processes, whereby, the standard output from one process becomes the standard input of the other process.
In computer programming, a pipe is a simple technique for passing information from one program process to another. What this means is that, a pipe passes a parameter such as the output of one process to another process which accepts it as input.