A male infant is found to have a uterus and fallopian tube remnants despite having normal testes and XY chromosomes. A defect in which fetal process most likely explains this finding?

• A. Excess secretion of luteinizing hormone
• B. Failure to produce anti-Müllerian hormone
• C. Inability to synthesize estrogen
• D. Premature activation of spermatogenesis

Answer: (B)