Answer: A. Stare decisis
Explanation: Stare decisis simply means aligning with precedence. Stare decisis is a legal culture which necessitates the court to look into preceeding cases when making rulings on similar cases. It obligates the court that when making ruling on a certain cases, rulings preceeding cases of similar nature, fact and structure must be considered.
Therefore, in the scenario given, the court is following legal precedent set by the ruling of a previous case in other to make decision on a current case. Therefore, the second case is an example of stare decisis.