What proportion of UK adults identify themselves as gay, lesbian, or bisexual according to official survey data?

The answer of 1.5% is supported by various official surveys conducted in the UK, such as the Office for National Statistics (ONS) surveys, which have reported that a small percentage of adults identify as gay, lesbian, or bisexual. This proportion reflects the diversity within the population while also indicating the complexities of sexual orientation identification, as many individuals may choose to identify as heterosexual or may not disclose their orientation. The percentage can vary depending on the survey's methodology, the population sampled, and the options available for respondents to express their identity.

Higher percentages proposed in some of the other choices might stem from different interpretations or broader definitions of sexuality, but when considering the most current and official data from reputable sources, 1.5% is recognized as the most accurate representation of adults who identify as non-heterosexual in the UK.