The correct answer to the question is Option 1: World Economic Forum.

The Global Gender Gap Index (GGGI) is an annual report published by the World Economic Forum (WEF) that measures gender equality across four key areas: economic participation and opportunity, educational attainment, health and survival, and political empowerment. The GGGI provides a ranking of countries based on their performance in closing the gender gap, with a higher ranking indicating greater gender equality.

The WEF has been publishing the GGGI report since 2006 and it has become a widely recognized tool for measuring progress on gender equality. The report draws on a range of data sources, including national statistics, international organizations, and surveys of business leaders and experts.

The other options listed in the question are not responsible for publishing the GGGI ranking. The UN Human Rights Council is a UN body responsible for promoting and protecting human rights around the world, but it does not publish the GGGI. UN Women is a UN entity dedicated to gender equality and the empowerment of women, but it also does not produce the GGGI. The World Health Organization (WHO) is a specialized agency of the UN that is responsible for international public health, but it is not involved in producing the GGGI report.

It is important to note that the GGGI report has its limitations and has been subject to criticism, particularly around the indicators used and the weighting given to different areas of gender equality. However, it remains a valuable tool for highlighting the progress and challenges of gender equality around the world.