Answer:
I believe it is either a or b I am sorry if I am wrong
<span>The scientific revolution, this period in time was called the Enlightenment period! mainly because it came after the dark ages, which during the dark ages people were very very unintelligent, so ask curiosity piqued and people started learning more and figuring out more about everything!</span>
Answer: because it was the day black people were free from slavery
Explanation: