The best answer is A.
Europeans had just developed galleons or ships that could navigate more easily throughout the world including Africa.
Easier access to foreign lands encouraged European nobles and merchants to seek out new territories in an effort to acquire wealth and natural resources such as gold and raw materials to feed mother industries back home.
Extracting raw materials from foreign lands provided the fuel for the industrial revolution in Europe and the practice of slavery provided Europeans with a new source of labor power.
A a desire to acquire new sources of gold and natural resources
