Which of the following is a source coding technique?

Concept: A source coding technique removes redundancy from the source data so that the same information can be represented using fewer bits before transmission or storage. Huffman coding is a classic entropy-based source coding method that assigns shorter codewords to more probable symbols and longer codewords to less probable symbols, which reduces the average number of bits per symbol. Other techniques such as arithmetic coding, run-length coding, and DPCM are also used for data compression, but in this question the correct choice is the Huffman coding technique because it is taken as the standard example of source coding here.