What is a major difference between a majority opinion and a concurring opinion issued by the supreme court?

a. a majority opinion does not legally resolve a supreme court case, while a concurring opinion does.
b. a majority opinion presents the official reasoning behind the court's ruling, while a concurring opinion offers different reasoning.
c. a majority opinion presents only facts about a case, while a concurring opinion includes opinions and interpretations.
d. a majority opinion explains and defends the court's ruling, while a concurring opinion criticizes the ruling.