[" A colourblind man has a colourblind sister but a normal brother than phenotype of its parents is? "],[" "ran aulirer quirer quer an makn aviger "(7)/(8)" sith "tan" and "(x)/(8)" you "(4)/(8)" and "(1)/(8)" bath "],[" A.Father colourblind and mother colourblind "],[" B.Father normal and mother colourblind "],[" C.Father and mother both are colourblind "],[" D.Father and mother both are normal "]