What Is the Most Likely Mode of Inheritance of the Exceptionally

Multiple Choice

What is the most likely mode of inheritance of the exceptionally rare condition represented in the pedigree below,and why?

A) impossible to determine,because the condition is so rare
B) recessive,because it is only present in one generation,but we do not have enough information to tell whether it's X-linked or autosomal
C) recessive,because unaffected parents have an unaffected child,and autosomal,because there are more autosomes than there are X chromosomes
D) X-linked recessive,because this would require the smallest number of rare alleles in the pedigree
E) X-linked recessive,because it only affects a male,and his parents are unaffected