Final answer:
Hemophilia is inherited from the mother in males.
Step-by-step explanation:
Hemophilia is an inherited disorder that is carried on the X chromosome. Since males have one X chromosome inherited from their mother and one Y chromosome inherited from their father, if the mother is a carrier of the hemophilia gene, there is a 50% chance that she will pass the disorder on to her son. Therefore, the correct answer is a. mother.
Learn more about Inheritance of hemophilia