The answer is A. the need for field workers. there was no gold in virginia, if you want soldiers hire them there is no need to make them slaves and need for craftsmen not really.
Shows a relationship that does not always indicate cause and effect ,
The terrorist´s main goal in committing the September 11, 2001 attacks was to cause terror within the frame of massive casualties in a scenario happenning inside the United States. Seen as a symbolic goal, it is rooted in many causes as stated by some of the terrorists´leaders, like the support of Israel by the United States; United States military presence in Saudi Arabia,etc.