The state of stress at a point in a 2-D body, in the \(x\)-\(y\) Cartesian coordinate system, is represented in matrix form as \([\sigma]\). The transformation matrix \([Q]\) rotates the coordinate system to a new \(x'\)-\(y'\) Cartesian coordinate system. Select the CORRECT option(s) that represent(s) the state of stress in the new coordinate system.