How to hide and unhide different tables in Microsoft Word 2013?

If you put a bookmark such as A and B in each of the tables, you could use code such as the following to hide the respective table

ActiveDocument.Bookmarks("A").Range.Tables(1).Range.Font.Hidden = True

However, as that requires that Hidden Text not be displayed and that being a user selected option, it may not be effective.

Alternatively, you could use code such as the following to delete the appropriate table

ActiveDocument.Bookmarks("A").Range.Tables(1).Delete

Doug, tks!

where should I use the code you mentioned, since it's going to be customer selection in a dropdown?

and what should be used in the drop-down (any code should be added there also)?

PAGE 1 - COVER

PAGE 2 - USER CLICK A DROP-DOWN ADN SELECT "A" OR "B"

PAGE 3 - THE SELECTED TABLE IS SHOWN (at this moment, I have both tables there)

I believe that will only hide the text in the table, and not the table itself. 

Selecting the whole table and formatting it as hidden will actually hide the table from view (assuming of course that you have set Word not to display or print hidden text). Similarly, you can hide one or more whole rows, and those will be invisible. Note, however, that hiding content in a column will not hide the whole column.