Given the following action and payoff table, which answer is correct?

		Firm B	Firm B
		Cooperate	Pull out
Firm A	Cooperate	200, 200	0, 0
Firm A	Pull out	0, 0	100, 100

Nash Equilibrium exists: Don't Expand, Don't Expand

Nash Equilibrium exists: A - Don't Expand, B - Expand

Nash Equilibrium exists: A - Expand, B - Don't Expand

Nash Equilibrium exists: A - Expand, B - Expand

Nash Equilibrium doesn't exist.