(A) 11
(B) 17
(C) 21
(D) 12
🧠 Explanation:
The total number of Sustainable Development Goals (SDGs) is 17. These goals, adopted by the United Nations General Assembly in 2015 as part of the 2030 Agenda for Sustainable Development, aim to address global challenges such as poverty, inequality, climate change, and environmental degradation through a framework of interconnected objectives to promote sustainable progress worldwide.