Answer:
Option-A: It is the best option to choose from.
Carrier test: "It is a genetic test used to determine if a healthy person is a carrier of a autosomal-recessive genetic disease."
Step-by-step explanation:
- Chances of having a child with an autosomal-recessive disorder:
If both partners are carriers, they have a 25% risk of having an affected child with a recessive genetic disease and a 50% that the child will be a carrier like the parents.