In October 1983, Reagan ordered U.S.troops to invade Grenada, a Caribbean island nation, after he determined that its turbulent Marxist government posed a threat to the almost 1,000 Americanson the island (many of whom were students at a medical school).
Answer: Irrigation and terraces are still used today.
I believe it is A) Input because input costs means the cost of direct material, direct labor, and other overhead items devoted to the production of a good or service.
