Answer:
My best guess would be (D)
Explanation:
I dont know for sure but I passed the test and answered that one so give it a shot
The answer is: American troops could invade Iraq if necessary.
It depends how far back you are talking about. If you are talking back to the 1700s it would be cotton. If you are talking about a time period even father back than that, sorry, I can't help. Hope this helped.
