Light of the Same Wavelength Passes Through Two Diffraction Gratings

Multiple Choice

Light of the same wavelength passes through two diffraction gratings.One grating has 4000 lines/cm,and the other one has 6000 lines/cm.Which grating will spread the light through a larger angle in the first-order pattern?

A) the 4000-line grating
B) the 6000-line grating
C) Both gratings spread the light the same.