A male homozygous dominant for polydactyly and a female without polydactyly have offspring. What is the predicted phenotype ratio (polydactyly : not polydactyly) of their offspring? 
选项为:A:0 : 1  B:1 : 0  C:1 : 1  D:3 : 1  E:1 : 3  请回答其中一个选项.