The Accompanying Figure Is a Pedigree of a Fairly Common

The accompanying figure is a pedigree of a fairly common human hereditary trait; the boxes represent males and the circles represent females.Filled in symbols indicate the abnormal phenotype.Given that one gene pair is involved,what is the inheritance pattern of the trait?

A) X- linked dominant
B) X- linked recessive
C) epistasis
D) autosomal recessive
E) autosomal dominant