The gene for haemophilia is located on the X chromosome, and the allele for haemophilia is recessive. In the pedigree diagram, the dominant allele is represented by $X^{H}$, while the recessive allele is represented by $X^{h}$. What is the probability that child M will have haemophilia?
- A0.00
- B0.25
- C0.50
- D1.00