I want to create an excel sheet that has dropboxes linked to each other. Example:

I have 3 types of flooring in a dropbox in cell B2 "wood", "carpet", and "tile". When I select "Tile" I want cell C2 to have a dropbox for the types of "Tile". "Tile 1", "Tile 2", "Tile 3". Or if I select "wood" in B2, have C2 populate a dropbox with the 3 types of wood. Any ideas?