The headquarter of UNFCCC is located at __________

Correct option is A

The correct answer is: (a), Bonn, Germany
The United Nations Framework Convention on Climate Change(UNFCCC) is an international environmental treaty which seeks to reduce atmospheric concentrations of greenhouse gases, with the aim of preventing dangerous anthropogenic interference with the earth’s climate system.
The UNFCCC, signed in 1992 at the United Nations Conference on Environment and Development also known as the Earth Summit, the Rio Summit or the Rio Conference
It is a framework which requires individual participating countries to commit to stabilizing greenhouse gas emissions.
There are 197 parties to the convention, who meet annually in Conferences of the Parties (COP) to assess progress in dealing with climate change.
The 28th Conference of Parties (COP28) to the United Nations Framework Convention on Climate Change (UNFCCC) was held in Dubai, United Arab Emirates.