A Child Appears to Be a Girl, and Is Raised

A child appears to be a girl, and is raised one. However, at puberty, the child's genitals become masculinized. From that time on, he is raised as a male, and accepts this new role. Which description of this child's development is most likely correct?

A) The child is XX, but begins to produce high levels of DHT at puberty and becomes a normal male.
B) The child is XX, but had congenital adrenal hyperplasia (CAH) , which led to masculinization due to high androgen production.
C) The child is XY, with a 5-alpha-reductase deficiency, which is overcome by high testosterone levels at puberty.
D) The child is XY, but had androgen insensitivity syndrome (AIS) , which led to his being raised as a girl.
E) The child is XXY, being functionally male, but having more female characteristics because of the extra X chromosome.