You have to give more detail
The importance of knowing the key dimensions of extreme natural events allow us to gauge the amount of preparation we need to do. The dimensions of extreme natural events are the severity of the natural event and its likelihood. These two provide a risk assessment that will tell us which disasters to prevent to the most.
The answer to the question you have presented above would be letter a. To show that other cases with similar circumstances came to a similar decision. Justices use precedents in majority opinions and dissents in order t<span>o show that other cases with similar circumstances came to a similar decision.</span>
Is there answer choices? If not, I'd put "repetitive". Hope this helps!