HTTP is the foundational protocol used for data communication on the World Wide Web. It stands for
Hypertext Transfer Protocol. It defines the standard rules that web browsers and servers use to communicate with each other.
Step 1: Breakdown the acronym.
- H: Hypertext
- T: Transfer
- T: Transfer
- P: Protocol
Step 2: Evaluate the options.
In the context of computer networking, a "Protocol" is a formal set of rules that govern how data is packaged and sent. While "Principle," "Plan," and "Player" start with the letter P, they do not describe the technical nature of HTTP.
Step 3: Conclusion.
The 'P' in HTTP universally represents "Protocol" in all networking standards. Hence, the correct answer is (B).
Final Answer:
\[
\boxed{\text{(B) Protocol}}
\]