One of the reasons commoners became more attentive to religion in the fifteenth century was that they had more available for them?

They had more printed materials

Explanation:

Prior to the invention of the printing press by Johannes Gutenberg in the 15th century, there was limited printed materials on religious subject which are mainly accessible by the wealthy. The availability of printed religious materials garnered the interest of commoners to religion.

countries such as spain, france and portugal colonized the region. although most of latin america was colonized by spain, the countries of portugal and france also had major influences on the region. due to war and disease, native populations were decimated.