I met this question in PMP exam and until now (been 2 weeks plus!) its still bothering me.
there's a question there, after you get the project charter what do you do next...
in the options I ruled out 2 choices and had difficulty on remaining two.
these are not the actual wording:
1.) Create Project Plan
2.) Talk to stakeholders and get their input.
 
My dilema was Stakeholder registry is part of the initiating process groupd and in project charter
Key stakeholders are sometimes identified but after you get PC we should be starting PMP.