Monochromatic light of wavelength $720\,\text{nm}$ from laser X is directed normally at a diffraction grating, and a diffraction pattern is formed. Light from laser Y is then also directed normally at the same grating. The third-order maximum produced by laser Y appears at the same position as the second-order maximum produced by laser X. What is the wavelength of the light from laser Y?
- A$480\,\text{nm}$
- B$540\,\text{nm}$
- C$720\,\text{nm}$
- D$1080\,\text{nm}$