Autoworkers Negotiate a Wage Increase

Autoworkers negotiate a wage increase.How does this change affect the supply curve of cars?

A) It shifts the supply curve leftward.
B) The supply curve will shift but there is not enough information to tell if the change shifts the supply curve rightward,leftward or not at all.
C) It shifts the supply curve rightward.
D) It creates a movement downward along the supply curve.
E) It does not shift the supply curve or create a movement along it.