please, answer it as soon as you can!!!! if you can only answer any one, then do the (b) part!!!!

Question #6 [5 Marks] a) Assume that the main memory has the following 5 fixed partitions with the following sizes: 100KB, SOOKB, 200KB, 300KB and 600KB order) I. II. Explain the following allocation algorithms: First-fit, Best-fit and Worst-fit. How would each of the First-fit, Best-fit and Worst-fit algorithms place processes of 212KB, 417KB, 112KB and 426KB (in order)? Compute the total memory size that is not used for each algorithm. Which algorithm makes the efficient of the memory? III. IV. use b) Consider the following Page tables and show the process allocation in main memory having 19 frame Process o Process 1 process 2 process 3 page # Frame Page # Frame Page # Frame Page # Frame 0 3 0 0 0 1 0 2 1 4 1 5 1 6 1 11 2 7 2 8 2 13 2 12 3 9 3 15 3 14 4 10 4 16 5 17 6 18