The extra territorial China granted Britain means trade with outsiders is permitted in treaty ports and foreigners operating there are given particular privileges after the first opium war. Option B is correct.
The First Opium War, often known as the Opium War or the Anglo-Sino War, was a series of military conflicts waged between Britain and the Qing dynasty of China between 1839 and 1842.
The immediate problem was that China enforced an opium trade ban by confiscating private opium stocks from cantonal dealers and threatening the death penalty for future offenders.
Therefore In 1842, the Qing Dynasty was forced to sign the Treaty of Nanjing. This was the first treaty that the Chinese under which granting compensation and extraterritoriality to British subjects in China.
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