When files and folders are copied or moved, the _____ temporarily stores the data. 

Data ________ helps to ensure data integrity by maintaining information in only one place

A) mapping B) centralization C) flexibility D) redundancy

Identify the selector that should be used to let a submenu remain visible even when the pointer moves away from the title and hovers over the non-visible submenu.?

A. ?a.submenuTitle:hover+ul.submenu, hover: ul.submenu B. ?a.submenuTitle:hover+ul.submenu, ul.submenu:hover C. ?a.submenuTitle:hover+ul.submenu, *ul.submenu:&hover D. ?a.submenuTitle:hover+ul.submenu, ul.submenu:@hover