Question

When the U.S. Supreme Court decides a case

the Chief Justice writes the majority opinion if he or she was in the majority
the Chief Justice writes the dissenting opinion if he or she was in the majority
the U.S. Supreme Court justices select an associate justice to write the minority and majority opinions
the U.S. Supreme Court justices select two associate justices to write the minority and majority opinions

Answer 1

When the U.S. Supreme Court decides a case, the Chief Justice writes the majority opinion if he or she was in the majority.

Step-by-step explanation:

The decisions of the Supreme Court are a binding precedent that obliges all other courts to respect them. In addition, its rulings have the ability to repeal laws.

The justices hear the arguments of the different parties and then meet to discuss it among themselves. Each justice of the Court has one vote in each case. When there are at least five justices in favor of a decision, that becomes the opinion of the Court that represents the final precedent. The justice with the highest seniority among the five voters has the privilege of choosing which of them will write the opinion of the Court. If the Chief Justice is among the majority, the privilege passes to him.