What was the biggest reason that europeans began to explore unknown regions of the world during the age of exploration? a) europeans believed that there were cultures who needed to be taught about christianity. eliminate b) europeans had a desire to find uncivilized cultures and teach them the correct way to live. c) europeans wanted to discover new lands, new creatures, and new cultures in order to expand their knowledge of the world. d) europeans wanted new sources of raw materials and new markets to which they could sell goods, increasing european wealth.