Utilitarianism:

a. is easy to implement because of its childlike simplicity supports the belief that life should be fair
b. is difficult to implement because it is hard to tell how one decision will impact a large number of people
c. states that any act that jeopardizes the individual’s rights is wrong
d. creates win-win situation

The correct answer is B. is difficult to implement because it is hard to tell how one decision will impact a large number of people

Explanation:

Utilitarianism refers to an ethical theory that states that the only right action is any action that leads to an increase happiness, and that any other action that leads to the opposite is wrong. Created by English philosopher Jeremy Bentham (1748-1832), he thought that seeking happiness and pleasure were the ultimate goal of human life, and his utilitarianism sought to create a moral theory that could also serve as a guide to action.

As good as it sounds, utilitarianism comes with a number of problems, however. It's not easy to implement, because defining an universal standard of happiness it's extremely hard: what's happy for some, might be hurting others. Often times, achieving happiness it's a zero-sum game (someone wins at the expense of someone else). Also, utilitarianism is difficult to implement because it is hard to tell how one decision will impact a large number of people: Either you have very limited information about the scope of your decision, which leads you to take uninformed decisions, or you have way too much information, which leads you to not being able to follow utilitarian principles because you realize how increasing happiness on one side means decreasing it on another one.