Answer:
Literacy, affordable
Explanation:
The increased use of books helped people to be more literate, and because there was more books, they weren't as "rare" and were therefore more common and cost less money.
D
I would say A
if I am wrong, I am sooo sorry.
search it up
its the smart thing to do
the population growth in eastern europe is 12.6 per 1,000 people compared to 38 in sub-Saharan Africa.