What is the basis for trade? a. absolute advantage. b. available resources. c. efficiency. d. comparative advantage. e. economic growth.

(D) Comparative advantage

Explanation:

  The comparative advantage is one of the basis for the trade as it has the capability for producing the various types of products and the services at low opportunity cost.

The comparative advantage basically refers to the economical ability for selling the products at very lower cost as compared to other firms and it also producing the strong sale margins.

 Therefore, Option (D) is correct answer.  

the assumption the narrator makes in this excerpt is that the messages he heards were going to hurt the narrator's mom; the narrator just springs in to action. the narrator doesn't specify in this excerpt why he believes that the messages present a problem that requires protection.

the answer is true.  i do believe this is the answer because of the amount of wrecks people get into each year.  if you double this with avoiding those so said wrecks, that would make you a "skilled" driver.