Answer:
A - Subtracting all costs from the total benefit.
Explanation:
Opportunity cost is the cost of doing something that might benefit you. For example, the Opportunity cost of playing Minecraft with your buddies is maybe completeing the remaining questions of your homework. This being true, makes the answer choice A the most logical one.
I am not sure. But Maybe someone else can help. I am sorry!!!!
The Gaia Theory was proposed. By the british.
Longitude is up and down . and latitude is left and right.