Which is the faster cpu and why?

Intel Core i7 Unlocked has more GHz (gigahertz) along with an Octa core.

Explanation:

More gigahertz means your CPU would run all applications at a faster speed and be more efficient. Not only that, an octa core is much more efficient than a quad core. (Octa meaning 8 while Quad being 4).  

answer is:

a). backstage view

explanation:

backstage view is the area where files and data about them is managed— creating, saving, printing, sending to others, inspecting for hidden metadata or personal information, and setting options. so in this way we can add many things to our document swiftly.

i hope you get the idea.