At an international conference on global climate change, a representative of a developing country admits that each year, his country contributes the same amount of green-house gases to the atmosphere as a particular developed nation. However, he argues that because his country has only 10% of the wealth of that developed nation, the developed nation should pay much more of the costs of adaptation. This representatives arguments illustrate the:

• A.  polluter pays principle.
• B.  precautionary principle.
• C.  equity principle.
• D.  conservation of the commons principle.