You are answering a USMLE-style medical question. Question: A 3-year-old male was brought to the pediatrician with severe lip lacerations, with a portion of his tongue appearing to be bitten off, as well as missing portions of the fingers on his right hand. A family history is notable for two similar cases in male cousins on the mother's side. A urinalysis revealed a high level of uric acid. Which of the following is the mode of inheritance for this disorder? Options: A) X-linked recessive B) X-linked dominant C) Autosomal dominant D) Maternally inherited mitochondrial defect Reply with ONLY the letter of the correct answer (A, B, C, or D). No explanation.