Why did the king of England introduce the Stamp act and other laws that heavily taxed the American colonists

There were several reasons actually. First of all, there was a war before. As it is well known, wars are very expensive. Soldiers needed to be equipped, soldiers need to be paid, etc. Then came the need to pay for heavy costs. Who to tax? For some reason the Colonies were chosen, perhaps as the war was quite literally fought by the colonies.

answer; (c) slaves brought to the americans from africa;