<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A newborn infant with karyotype 46, XY has male internal and external reproductive structures. The lack of a uterus in this infant can be attributed to the actions of which of the following cell types?? A: Leydig, B: Sertoli, C: Theca, D: Granulosa, E: Reticularis,  <response>: This is a question about sexual differentiation in a newborn with a 46, XY karyotype, which indicates a genetically male infant. The infant has male internal and external reproductive structures, meaning the infant developed testes and male genitalia. The lack of a uterus indicates the infant did not develop female internal reproductive structures. During sexual differentiation, the bipotential gonad develops into either a testis or ovary based on genetic signals. In an XY individual, the Y chromosome causes the gonad to develop into a testis. The testis then secretes testosterone and AMH, which cause development of male internal and external structures. Lack of a uterus occurs because AMH from Sertoli cells in the testis causes regression of the Mullerian ducts that would otherwise develop into the uterus and fallopian tubes.B: Sertoli 