Explanation:

HTTP stands for Hypertext Transfer Protocol. It is an application layer protocol for distributed, collaborative, hypermedia information systems, forming the foundation of data communication for the World Wide Web. Options (1) and (4) are incorrect because the 'P' stands for 'Protocol', not 'Program'. Options (3) and (4) are incorrect because the 'T' stands for 'Text', not 'Trans'. The correct and standard acronym is 'Hypertext Transfer Protocol'.