The correct answer is: A. United Nations Decade on Education for Sustainable Development
The United Nations declared the period 2001-2010 as the United Nations Decade on Education for Sustainable Development. The goal of this decade was to promote education for sustainable development as a means of achieving the Millennium Development Goals and building a more sustainable future for all.
The First International Decade of the World’s Indigenous People was declared by the United Nations in 1995. The goal of this decade was to promote the full and effective participation of indigenous people in all aspects of society and to protect their rights and cultures.
The Second International Decade for the Eradication of Colonialism was declared by the United Nations in 1990. The goal of this decade was to complete the decolonization process and to promote the self-determination of all peoples.
The Culture of Peace and Non-violence for the Children of the World was declared by the United Nations in 1998. The goal of this decade was to promote a culture of peace and non-violence among children and young people.