HTTP is built from four letters, and each letter stands for one specific word. Checking each option word by word against those four letters settles the question without needing any outside history.
- Hyper Text Transfer Protocol: H matches Hyper, T matches Text, T matches Transfer, and P matches Protocol. Every letter lines up with its word exactly, with no substitutions.
- High Text Transfer Program: The first letter is wrong, since H is meant to stand for Hyper, not High, and the last letter is also wrong, since P stands for Protocol, not Program. Two of the four letters fail to match.
- Hyper Transfer Text Program: Here the middle two words are swapped, Transfer and Text appear in reverse order compared to the actual acronym, and the final word again wrongly uses Program instead of Protocol.
- High Transfer Text Protocol: This option gets the first letter wrong with High instead of Hyper, and also reverses the middle two words, so it fails on two separate points.
Checking each phrase letter by letter against H-T-T-P shows that only one option reproduces every letter's correct word in the correct order.
Therefore, the correct answer is Hyper Text Transfer Protocol.