Practice: Predict the major product from the Birch Reduction

The birch reduction is a dissolving metal reduction, except reacting with benzenes instead of alkynes. The product of an unsubstituted benzene is a simple isolated cyclohexadiene.
Concept #1: Birch Reduction Mechanism
Mechanism:
Concept #2: Regiospecific products
Substituents affect the course of the mechanism, yielding regiospecific products.
Practice: Predict the major product from the Birch Reduction
Practice: Predict the major product from the Birch Reduction