if you are looking for an answer for a vanilla test with a question on JSM/Utilitarianism or simple shit like that then the previous post may be of help
if it is something where you think you can get points from going a little bit beyond that,then try questioning the notions Utilitarianism and Morality
Utilitarianism- utility/usefulness to whom?
Morality- who decides what is moral/immoral, who decides there is a morality to start with
a little more work- but in the end much more interesting