Depends on the user license. If you use the Chatter Free license, the role is grayed out. (The field still shows as required, so I get what you mean, but the question asks what's required to create a user and Role isn't 'required' in all instances. I'm voting for ABC too)
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Dinataman
Highly Voted 4 years, 8 months agopicho707
Most Recent 3 months, 3 weeks agolavanya7
4 years agoJon_C
4 years agoIce_Bear
4 years, 2 months agoRadoslaw
4 years, 4 months ago