Jones and smith live in the same apartment building. jones loves to play his opera recordings so loudly that smith can hear them. smith hates opera. jones receives $100 worth of benefits from his music and smith suffers $60 worth of damages. from an efficiency perspective, jones allowed to play his opera music. should be should not be

The correct answer is letter "A": Should be.

Explanation:

From the efficiency perspective, we shall consider the relationship between the benefits and the costs. If we subtract the cost from the benefits and the result is positive, we could say that it is convenient to continue with the activities of the operations being carried out.

In that case, Jones's benefits are (100) but his cost is Smith's damages (60). Then:

100 - 60 = (+)40;

which implies Jones should be allowed to play his opera music.