The statement that best highlights the difference in Spanish methods of conversion compared to those of the French is: They used both the church and a system of labor to convert Native Americans.
The Spanish often established missions that not only focused on religious conversion but also utilized a labor system, such as encomienda, to integrate Native Americans into Spanish colonial society. In contrast, the French generally took a more diplomatic approach, often allowing greater freedom for Native Americans to practice their own beliefs and establishing trade relationships rather than relying heavily on forced labor.