The tropics, underwater volcanic regions, the equator.
Answer:
Opportunity cost makes decision makers think about whether the best alternative option isn't really the best option.
Explanation:
Next time put the question into Social Studies.
A. Your opinion about which side is right
I think he argues that school is not a platform for free speech?
There are some words that have the meaning of "fond of being with others", for example sociable, gregarious, etc.
Hope this helps~