Marginal costs. Keep in mind that marginal means on the edge of something, so the cost of producing one more unit would be on the edge. Hope this explanation helps.
<span>Political and economic crises can help candidates get elected if they present a stand that the majority of voters agree with and tell the voters what they want to hear. On the other hand, a political and economic crises can hinder a candidates chance for election if he opposes the majority opinion on major issues that the voters see as necessary or important.</span>
It has led to the invasion and occupation of countries suspected of supporting terrorists.
Answer:
1,3,4,5 in the list of answers.
Explanation: