In cattle, the coat colour red and white are two dominant traits, which express equally F1 to produce roan ( red and
white colour in equal proportion). If F1 progeny are selfbred, the resulting progency in F2 will have phenotypic
ration (red : roan: white) is –
(A) 1: 1:1 (B) 3 : 9 : 3 (C) 1 : 2 : 1 (D) 3 : 9 : 4