Open source software refers to software that is free of charge

Match the following shortcut keys in PowerPoint 2013 to their function:

I. Type B in Slide Show view II. Esc in Slide Show view III. Ctrl+Tab IV. Spacebar in Slide Show view V. Shift+Tab A. ends the slide show B. advances to the next slide C. inserts an indent within a table cell D. moves the insertion point within a table to the previous cell E. changes the slide to a black slide

Sequential access from sequential files is much faster than sequential access from indexed sequential files. Why then do many applications designers implement systems in which indexed sequential files are to be accessed sequentially?

What will be an ideal response?