Which of the Following Was Not a Feature of the Treaty

Which of the following was not a feature of the Treaty of Nanjing?

A) Hong Kong was transferred to British control.
B) The British agreed to stop exporting opium to China.
C) The British obtained the right to begin trading in five Chinese ports.
D) All British citizens in China were granted extraterritorial rights.
E) The British were to be paid an indemnity to cover the cost of the Opium War.