_____ city is set to host the 2019 United Nations Climate Change Conference, also known as COP 25 ?

September 28, 2019

1) Marrakesh, Morocco
2) Bonn, Germany
3) Katowice, Poland
4) Santiago, Chile

Explanation:
The 2019 United Nations Climate Change Conference, also known as COP25 in Santiago, Chile from December 2-13, 2019.