What characterizes a person who is intersex?

A person who is intersex is characterized by having a combination of both male and female reproductive organs, chromosomes, or hormones, which may not fit typical definitions of male or female bodies. This biological diversity can manifest in various ways, such as possessing different types of reproductive or sexual anatomy that doesn't conform to standard definitions of male or female. Intersex is a natural variation in human biology and can include a range of conditions where an individual's physical characteristics are atypical for either sex.

The other options do not accurately describe intersex individuals. Some intersex individuals may not identify as neither exclusively male nor female, but it is not accurate to say they have no identifiable gender or that they always identify as male or female. Additionally, undergoing hormone therapy is not a defining characteristic of intersex; hormone therapy may be a choice for some individuals, but it does not make a person intersex. Thus, the most accurate characterization of intersex individuals is the presence of both male and female reproductive organs.