Answer:
C. Primary or Secondary sources related to the event.
Explanation:
A historian using primary or secondary resources related to the events is the most reliable.
They helped please everyone and everyone was happy with the out come. I believe. Hope it helped
Answer:
The number one cost is the amount of lives lost. At least 600,000 people died during the civil war. A human life has no price. So no other cost comes close to the amount of deaths that occurred because of the grueseom civil war. (I DONT HAVE THE ANALYZE IT PASSAGE SO I CAN'T PUT QUOTES.)
The war was costlier for the North. Even though they won, and they got what they wanted. And the south lost their slaves, the North paid way more in human lives. (Add quotes. If you don't have differences in human lives lost, just mention slaves were lost by south)
Explanation: