Answer:
d. American Indians were prevented from accepting Catholicism
Step-by-step explanation:
The Spanish mission-building era was one of the strategies that were employed by the Europeans in order to get a firm hold among the Native Americans in North America. They introduced their missions with the aim of getting the Native Americans involved after which they gradually introduced other aspects of their lives such as food and their skills in trade and craftsmanship.
This was an attempt to colonize these people and extend their boundaries. A point was reached when the missions underwent secularization by being transformed into an officially recognized Spanish Society.