13 Which of the following statement about the Opium War is correct?(A) The British government attached great importance to business issues; thus, as early as the Qianglong period of the Qing Dynasty, Amherst was dispatched to negotiate with the Chinese government. (B) Due to the prevalence of liberal trade theories, during the Daoguang period of the Qing Dynasty, the British government abolished the East India Company’s trade privileges with China, and began to allow British businessmen to trade with China. (C) Lin Zexu banned smoking in Guangzhou at a time when the British Liberal Party was in power and Prime Minister Palmerston decided to send troops to China. (D) The consequence of the Opium War was the signing of the Sino-British treaty of Beijing in 1842.