PPlease give some explaination for the answers

1) Using solid lines 1, draw a set of at least 4 adjacent, parallel lines/planes with Miller indices (h,k,l)=(1,2,0). (A plane will appear as a line in this projection) (2 points) 2) Using dashed lines ( ), draw a set of at least 4 adjacent, parallel lines/planes with Miller indices (h,k,l)=(2,3,0). (2 points) 3) Which of these 2 sets of planes will give rise to the lower resolution diffraction spot? How do you know? (2 points)