At the opening of the play, Tom is dressed in a merchant sailor uniform, which foreshadows Tom’s abandonment of his family. Option B is correct. In other words, it foreshadows Tom's desertion of his mother and sister.
Tom has a double role in The Glass Menagerie. He is presented as a character whose recollections the play documents and as a character who acts within those recollections and highlights the play’s tension between dramatic real facts and memory’s distortion of truth.
