Answer:
Opportunity cost is the comparison of one economic choice to the next best choice. Or the choice not been made.
EX:
You choose Coke over Fanta. The opportunity cost is the Fanta because you didn't choose it
Answer:
The answer should be B. (Rails)
Explanation:
We know that A and D are out because there are no vowels. I couldn't find any word that can be arranged from C.
