Which of the following became the main items of trade for the british from the american colonies?

i think you may have asked this twice, but i answered one of the

england is crowded cold and polluted while north america was like the opposite

according to my research (britannica and quizlet) the first settlements were along the huang river because it could give the crops more fertile soil that really it out. this was due to the yellow slit caused by floods of the river.