courts that use a landmark case as precedent for a decision are using an earlier case as a guide. changing…

courts that use a landmark case as precedent for a decision are using an earlier case as a guide. changing the previous cases decision. using a third party to review the case. sending the case to a higher court for review.
Answer
Brief Explanations:
Precedent in law means using earlier - decided cases as a guide for new decisions. A landmark case is an important earlier case. So, using it as precedent is using it as a guide.
Answer:
using an earlier case as a guide.