Kiera Is a Lesbian Woman in Her Fifties

Kiera is a lesbian woman in her fifties.She was married to a heterosexual man and divorced after having three children.She has now formed a special bond with a very sympathetic,gentle and generous woman who is older than herself.Kiera has engaged in sexual relations with the older woman,and is considering changing her identity label.This is referred to as:

A) lesbianism.
B) heterosexuality.
C) transsexuality.
D) transgender.
E) person-based attraction.