The opinions and prejudice of an author in writing.
I believe that those two elements greatly affect bias in history because we can never be 100% sure of everything that (may have) happened in history (especially farther in the past), so opinion can affect a historian's writings. Also, everyone is prone to some sort of prejudice, so this can also affect history.
China makes a lot of goods and is one of the largest countries for trading and manufacturing goods
Is this a like a true or false question or what?
Green since the color reflected is the one that your eyes pickup.