Plss help i have a test tomorrow giving brainiest

No copying 15pts describe the belief in purgatory and explain the reason for the sale of indulgences.

Which philosopher believed the path to new knowledge is by way of inductive reasoning? options: a) francis bacon b) andreas vesalius c) isaac newton d) rené descartes

How did nationalism motivate italy's unification? the italian people wanted to return to a pre-napoleon ancien régime. the italian people wanted a republic nation free from austrian rule. the italian people wanted to instigate industrialization in italy. the italian people wanted to lead europe into the modern age.