Which of the Following Was NOT a Key Feature of the COP21

Multiple Choice

Which of the following was NOT a key feature of the COP21 Paris Agreement?

A) Wealthy nations pledged $100 billion a year to help developing countries adopt new technologies to reduce carbon emissions.
B) Governments pledged to limit increases in Earth's average temperature to 2 degrees centigrade.
C) Governments agreed to re-visit their emission-reduction plans every five years.
D) Developing countries (such as China and India) were not required to reduce emissions.