If i export my object in *.FBX file format what Smoothing mode i select?

Support Basics & Interface
1

In Blender i set up smooth shading (Shading -> Smooth in object mode). I don’t have AutoSmooth option enabled, and do not have any hard edges. Only ShadeSmooth mode enabled

Now i export to *.fbx and i have three variants for Smoothing, which are:

  1. None
  2. Face
  3. Edge
    Which one i choose?
    Also, do i have to check LooseEdges and TangentSpace checkboxes? (They unchecked by default)

If there is *.fbx exporter walkthrough guide, i’d be grateful for any links.

2

If there is *.fbx exporter walkthrough guide, i’d be grateful for any links.
https://wiki.blender.org/index.php/Extensions:2.6/Py/Scripts/Import-Export/Autodesk_FBX