Destiny Has Distal Symphalangism - Her Fingers and Toes Are

Multiple Choice

Destiny has distal symphalangism - her fingers and toes are stiff,with tiny nails.She looks it up and finds it is an autosomal dominant trait.Since her parents do not have it,she reasons that she is a new mutation.However,if she has children,each of them,assuming her partner does not have the condition,has a(n) _____ probability of inheriting the condition.

A) 1/8
B) 1/4
C) 1/2
D) 0