Answer:
Knowledge
Explanation:
Knowledge could be defined as information, facts, skills gathered through experience or education. In the case above, the student has knowledge of how his "class average" works and so he "knows" that if he works hard enough, he can improve it to a B. However if he didn't have this knowledge, he probably would have started panicking and already think there isn't any hope of improving his average.
I wouldn’t because the reason the south had such a big problem with slavery was because of the demands of the north if the south separated the country would go into flames the south would probably also go into flames because there was a system that supplied the entire country now that’s gone if they left and separated