What was the more important reason for the Slave Trade, social, economic or political reasons?

In economic terms the slave trade had become less important. There was no longer a need for large numbers of slaves to be imported to the British colonies. There was a world over-supply of sugar and British merchants had difficulties re-exporting it.

Explanation:

the navigation act prevented the colonies from exporting to countries other than britain and it prevented the importation of goods by other countries as well. so i believe the correct answer is d. other nations could not deliver goods to the colonies.

hope this .

d. it was created with the idea that it could be easily revised if it was ineffective