when a framed partition butts against a masonry wall, why is a 1 x 2 furring strip applied at the point of…

when a framed partition butts against a masonry wall, why is a 1 x 2 furring strip applied at the point of intersection?\no to level the surface\no to allow for expansion\no to prevent cracking of the gypsum board\no to provide a nailing surface for the gypsum board
Answer
Brief Explanations:
La pieza de madera de 1 x 2 (furring strip) se aplica para ofrecer una superficie adecuada para clavar la placa de yeso en la unión entre la partición armada y la pared de mampostería.
Answer:
to provide a nailing surface for the gypsum board