Answer:
The answer is C.
Explanation:
In a competitive market, all firms produce identical goods and services. No firm or seller can influence the prevailing market price. To increase their revenue, firms must increase their outputs.
In this industry, firms make economic profit(revenue minus accounting cost minus implicit cost) in the short run but this economic profit reduces to zero in the long run because more firms that are attracted by the short run profit can enter the industry freely. Firms can also exit with little or no cost.
I would say that b is the best answer
Answer:
10% of exam score
Explanation:
Opportunity Cost is the cost of next best alternative, foregone (sacrifised) while making a choice.
Example : If a person has option to have an apple or an orange, & choses to have apple. The opportunity cost of having an apple is the sacrifised orange.
Given : A night before mid time exam, spent while watching movies - later lead to fall in exam grade from 70 % to 60%
The opportunity cost of movies watched, is the sacrifised grade of exam, which would have gotten, if the time would have spent in studying. The corresponding grade lost = 70% grade achievable - 60% grade achieved. Hence, the opportunity cost = 10% of exam score.