Hi can I have some quick help with this questions please?

Use the following information to answer numerical-response question 8. grating or a triangular prism. Screen White light can be spread into the full visible spectrum by shining it through a diffraction S Region X- Diffraction Observed Spectra IS DAF grating Central bright spot White light DO Region Y- Red 2 Red White light Region Z- Glass prism Numerical Response 8. Using the numbers on the observed spectra given above, identify the spectrum that is observed at regions X, Y, and Z, as indicated below. Observed Spectrum: Region X Region Y Region Z