Positional bargaining is widely practiced, and it is the kind of negotiating that most people think of first when thinking about negotiation. On the other hand, $$principled$$ negotiation, as set forth in GTY$,$ is not as well known, nor as widely used because which of the following?

Group of answer choices

it is not the norm in some parts of the world

it requires thoughtful and thorough preparation for each negotiation

it requires study and practice

all of the above