An Autosomal Dominant Trait Is Discovered by a Nurse Constructing

An autosomal dominant trait is discovered by a nurse constructing a client pedigree.The trait has not appeared in two generations but was strongly evident three generations ago.What advice should the nurse provide for the client?

A) "Your family should be genetically tested for this trait."
B) "The men in your family should be genetically tested for this trait."
C) "This trait existed in your past,but will not be transmitted now."
D) "Your children have a 25% risk of inheriting this trait."