A flat plane mirror of length \(2.0\text{ m}\) is positioned vertically along the \(y\)-axis from \(y = -1.0\text{ m}\) to \(y = 1.0\text{ m}\) at \(x = 0\text{ m}\). An observer stands at position \((2.0\text{ m}, 0\text{ m})\) looking toward the mirror. Four small objects, labeled \(W\), \(X\), \(Y\), and \(Z\), are placed along the line \(x = 2.0\text{ m}\) at \(y\)-coordinates of \(2.5\text{ m}\), \(1.5\text{ m}\), \(-1.0\text{ m}\), and \(-2.5\text{ m}\), respectively. Which of the objects can be seen by the observer in the mirror?