Diffraction Grating #1 Has Twice the Lines/cm That Diffraction Grating

Diffraction grating #1 has twice the lines/cm that diffraction grating #2 does. When used with a certain wavelength of light, both gratings give first order (m = 1) maxima. Which of the following statements is true for the same wavelength of light.

A) Both gratings must also give second (m = 2) order maxima.
B) It is possible that neither grating gives a second order maximum.
C) Grating #1 must give a second order maximum.
D) Grating #2 must give a second order maximum.