PNG- Usually if you look up your picture and then add png to the end, it has a transparent background. Make sure it has free usage, though.
Common uses for spreadsheet documents be
-Organizing bills and money
-Groups of people and events
-Family plannings for weeks
-Grocery Lists.
I hope this helps!
Employee information can be considered master data in an organization
Well its really both in a way but the answer is A) True