Potrzebuję odpowiedzi na to pytanie i dobrego uzasadnienia: Which crime is the most serious. Justify your opinion and say what we can do to prevent.

For me,murder is the most serious crime.I think that,because,no one has rights to kill other people.That is just awful!To prevent that we can go to the self-defense class,to learn how to defende ourself in case of danger,like meeting a serial-killer.