What Was One of the Major Reasons for Western Support

What was one of the major reasons for Western support to the Qing Dynasty in defeating the Taiping Rebellion?

A) The Taipings were strongly opposed to Christianity and wanted to remove all missionaries.
B) The Taiping Rebellions led to a war with Japan and the Chinese population preferred peace.
C) The Taipings would not allow reforms in Confucian governmental practices.
D) The Taiping eventually opposed opium use and wanted to end land concessions to foreigners.
E) The Taipings liked opium usage and the Western powers felt it was bad for the Chinese people.