B. To indicate whether the library owns a particular book
Thank u for the free points!
Answer:
Opportunity cost is the value of the next best thing you give up whenever you make a decision. It is "the loss of potential gain from other alternatives when one alternative is chosen". ... For example, opportunity cost is how much leisure time we give up to work.
Explanation:
hope this helped
Answer:

Explanation:
The excerpt exemplify Gothic's fiction by remanding the reader of the presence of evil. The excerpt reminds the reader that evil is still present and it doesn't go anywhere. Along with good, it is present everywhere. So, the excerpt reminds the reader that the evil is still present.