Which is the best correlation between the introduction of islam and an increase in literacy?

The best correlation between the introduction of Islam and an increase in literacy was the people needed to know how to read in order to be devout practitioners of Islam.

the first settlements began along the huang river because of the importance of the huang river in the beginning of china. it goes back to the story, “the tale of emperor yu”, which references the tale of the great flood, which was caused by the huang river and was believed to create and influence china’s making.

can you explain it better