List 2θ and hkl of first 3 lines on an x-ray diffraction pattern for a simple tetragonal structure (a=4Å, c=1Å) analyzed using CuKa radiation (λ = 1.542Å).
a) (14.78°, 001), (29.57°, 002), (44.36°, 003)
b) (7.39°, 100), (14.78°, 200), (22.17°, 300)
c) (29.57°, 100), (44.36°, 200), (59.15°, 300)
d) (14.78°, 001), (29.57°, 002), (44.36°, 100)