Arbtor Bus request level 1 Bus request wol 2 Bus grant lovd2 Bus grantirvel1 Use the figure above to answer to the following question a) Is the given bus architecture centralized? Why or why not? b) Assume that Level 2 request line has a higher priority than level 1. list in descending order the devices based on their priorities. c) A sixth Input/Output device would be added with a priority level higher than device 3. To which bus request line should it be connected? Add it to the figure. d) What is the advantage ofadding a third priority level