N 1868, helium was discovered by looking at the sun almost thirty years before it was discovered on earth. How was that possible? Group of answer choices

a, The size of the sun flares suggested that the matter was twice the mass of hydrogen

b, They captured cosmic rays from the sun that had helium in it

c, They found a meteorite that contained helium

d, By looking at the light from the sun they found a spectrun of light that was not from any known element