b) Differentiate between : i. Internal and external fragmentation. (3 marks) ii. First-fit, Next-fit and Best-fit memory allocation techniques (6 marks) iii. Release-match and Age-match memory allocation technique (3 marks) Given memory partitions 100KB, 500KB, 200KB, 300KB, and 600KB (in order), show how First-fit, Next-fit and Best-fit memory allocation techniques place processes of 212KB, 417KB, 112KB, and 426KB in order). Which algorithm makes the most efficient use of memory? (8.5 marks) c)