a) Training vectors in the codebook generation phase, which will consist of a total of two code vectors for a vector quantization operation; [2, 2], [8, 6], [3,4], [10, 10], [9, 5]. The code vectors [3, 4] and [9, 5], which are randomly chosen at the beginning, find the cells formed at the end of the first iteration. (classes) and cell centers (current code vectors). b) Explain the advantages of vector quantization over scalar quantization.