Given the following definitions and declaration of the Triangle t, which code fragment prints the x- coordinate from vertex 2 of Triangle t? struct Point2D double x; double y; struct Triangle Point2D *v1; Point2D *v2; Point2D *v3; Triangle t; t.v1 = new Point2D; t.v2 = new Point2D; t.v3 = new Point2D; o cout x V2->x V2.x