Comparison of the spectral line emission of methanol from the envelope component of the envelope-plus-disk model (dotted lines) and emission from the envelope component and the disk component of the envelope-plus-disk model (solid lines). The line fluxes for the envelope component of the envelope-plus-disk model (dotted lines) were calculated by setting the abundance of methanol in the disk to zero. Green shows the fiducial model, i.e. low mm opacity dust grains, and orange shows the fiducial model with high mm opacity dust grains.