In an organism, pink spot is a sex-linked recessive trait and black hair is dominant to white. If a pink spotted black heterozygous female is mated to a white male which is not spotted, the phenotypic ratio of the offspring would be [JIPMER 1994]

• A. 1/4 spotted black; 1/4 pink spotted white; 1/4 unspotted black; 1/4 unspotted white
• B. 1/2 pink spotted black; 1/2 pink spotted white
• C. 3/4 pink spotted black; 1/4 pink spotted white
• D. 3/4 unspotted black ; 1/4 pink spotted white