The best option regarding Lyndon Johnson's actions as president would be that "<span>He tried to continue Kennedy's policies," since he turned out to be a highly progressive President. </span>
As the demand for slaves grew, the Portuguese began to enter the interior of Africa to forcibly take captives; as other Europeans became involved in the slave trade, generally they remained on the coast and purchased captives from Africans who had transported them from the interior.
D: The conquests brought great power and wealth to the Romans.