In the context of databases, the term data redundancy refers to: a. storing the same information in several records b. repeating data on multiple reports using foreign keys c. which duplicate the values of primary keys d. all of these are possible examples of data redundancy

Jason is working on a microsoft excel worksheet and he wants to create a print preview shortcut. his teacher asks him to access the customization option to create the new shortcut. which two tabs should jason select to place the print preview shortcut on the worksheet toolbar? a. new tab (custom) and new group (custom) b. new file tab (custom) and new tab (custom) c. new custom group and new command d. new custom tab and new command