A thin protective coating with index of refraction \(n_2\) and uniform thickness \(t\) is applied to the surface of a glass lens with index of refraction \(n_3\). The coated lens is surrounded by air with index of refraction \(n_1\), where \(n_1 < n_2 < n_3\). Monochromatic light of vacuum wavelength \(\lambda_0\) travels through air and falls perpendicularly onto the coating. Which of the following expressions represents the minimum non-zero coating thickness \(t\) that results in maximum constructive interference of the reflected light?