In 1873, the British signed a treaty with King Jaja of Opobo, recognizing him as the ruler and setting up favorable trade terms because they wanted access to palm oil. This is an example of using diplomacy. What was the main reason for the British signing the treaty with King Jaja of Opobo?
1) To establish a military alliance
2) To gain control of the Opobo kingdom
3) To secure favorable trade terms for palm oil
4) To establish a colonial administration