Which of the following most appropriately describes haemophilia?

Haemophilia is a sex-linked recessive disorder. These kinds of defects occur more often in men than in women. A daughter gets an X chromosome from her mother and an X chromosome from her father. If, the X chromosome from her mother has the gene for normal blood clotting and the X chromosome from father has the gene for haemophilia. The daughter will not have haemophilia since the normal blood clotting gene from her mother is dominant. It won't allow the instructions from the haemophilia gene to be sent. The daughter is called a carrier for haemophilia. She has the gene on one of her X chromosomes and could pass it on to her children.So, the correct answer is option A (X-linked recessive gene disorder).