A. See the table below

F1 Help
F2 Rename
F3 Find
F4 Display combo box in Explorer
F5 Refresh
F6 Switch panes in Explorer
F10 Menu Mode
ALT + ENTER Properties
CTRL + Drag a file Copy
CTRL + G Goto
CTRL + Z Undo
CTRL + A Select All
CTRL + ESC Start Menu
CTRL + SHIFT + ESC Task Manager