"...for a random access files, the program store the data following a set of algorithm which will transform each key into a number used as the index for the data logical address" The description above describe which of the following method: Select one: OA Hashing OB, Grouping OC. Translation OD. Lookup On magnetic disks, files can be organized in which of the following method? 1. Indexed direct II. Random III. Sequential 1. Indexed sequential Select one: O All and Ill only O B. III and IV only OC I and III only OD. I, II, III and IV