Prince Henry the Navigator, who was a Portuguese royal, originally sponsored voyages to Africa primarily to develop a trade route to Asia and to find gold. His motivations included the desire to increase trade and wealth for Portugal, as well as to spreading Christianity. While he was interested in finding gold and other riches, his expeditions were also aimed at exploring new territories and establishing trade routes.
So, the most accurate answers among the options you listed would be:
- He wanted to find gold.
- He wanted to spread Christianity.
- He wanted to develop a trade route to Asia.
Enslavement was a consequence of some of the expeditions that occurred later, but it was not the original primary motivation for Prince Henry's sponsorship of voyages.