How did the Opium War result in opening China to British trade and influence? Place the following events in chronological order.
a) Treaty of Nanjing, Opium War begins, First Opium War
b) Opium War begins, First Opium War, Treaty of Nanjing
c) First Opium War, Opium War begins, Treaty of Nanjing
d) Opium War begins, Treaty of Nanjing, First Opium War