A为什么不对？

问题如下：

The Paris Agreement:

选项：

A.is legally binding under the local law of each signatory country. B.requires every signatory to provide an annual update on its national emission commitments. C.aims to limit the increase in global average temperature to below 2°C above pre-industrial levels by the end of the century.

解释：

C is correct. The aim of the international Paris Agreement on climate change is to pursue efforts to limit the temperature increase to 2°C (3.6°F) above pre-industrial levels by the end of the century. The Paris Agreement does not set any legally binding targets under international law. Signatories to the Paris Agreement are required to determine, plan, and report on its NDCs, with updates to commitments every five years.