1. The crew and supply the ship can carry and handle.
2. The period and duration of exploration. The main issue of every travel and exploration was the time it took the ship from its origin to the supposed destination. The new types of sailing ships was more improved applied with machinery as the centuries past and traveling went from years to months to days.
3. In times of war or conflict
The answer is "All beliefs"
"b. They keep herds of animals" and "<span>c. Their food supply is more reliable than that of farmers" would be be accurate descriptions, since hunter-gatherers need to move around because they have not domesticated plants or animals. </span>
<span>North Korea had a large number of troops contrary to the south that was a major advantage did North Korea Possess. This would be the correct answer.</span>