Valeria Has a Serious Disorder Called Fragile X Syndrome and Her

Valeria has a serious disorder called fragile X syndrome and her brother does not have the disorder. Her mother does not have the disorder but her father does. What is the most likely inheritance pattern for fragile X syndrome?

A) Autosomal dominant
B) Autosomal recessive
C) X-linked dominant
D) X-linked recessive
E) Y-linked recessive