Can anyone please help me to understand this question?

I think here you'd have to look at the various types of sentencing used in criminal courts in your country; more or less, sentencing is used as a general deterence mechanism and to "send a message" to the public at large that crimes are punishable as per the law, and ppl won't get away with crime etc. In addition, sentence severity depends on the gravity of one's crime: for example, murder vs. manslaughter; beating with a bat vs. a tissue box -- the worse the crime, usually, more the time, depending on statutes. It is also harsher in crimes where there are victims, vs. no victims Start by general deterence doctrine and you will find you way. Good luck