Those who prefer to live as members of the sex other than their birth-designated sex are described as

A) intersex.
B) androgynous.
C) transgender.
D) bisexual.

Transgender is the term used to describe individuals who prefer to live as members of the sex opposite to their birth-designated sex. Intersex refers to individuals born with reproductive or sexual anatomy that does not fit typical male or female classifications, while androgynous refers to individuals that do not conform to typical gender roles or characteristics, and bisexual refers to individuals attracted to both men and women.