<span>An ideal national security policy might balance the need for good relations with other countries against the need to take punitive or pre-emptive actions when necessary. This may prove difficult to achieve in reality because people of different nations may disagree on which policies are appropriate.</span>
Steam engines allowed advancements in transportation and trade by powering locomotives and steamships that carried goods and people.
Steam engines were powerful and reliable. Therefore, they helped Britain expand its economy and engage in long-distance movement of people and products.
Answer:
Correct answer is C. specialization.
Explanation:
Option A is not correct as education is a broad category, but it is not always connected with labor.
B is not correct as it is more of a way of thinking to preserve nature.
C is correct as surplus means that you have more product than you need, nothing else.
D is correct as specialization led to redistribution of labor. People were engaged in different things and thus provided their incomes.