In most Supreme Court cases, the bulk of the arguments presented by either side will be found in the

• A. Brief
• B. Certiorari petition
• C. Oral argument
• D. Per curiam decision

Answer: (A)

Written briefs are where the bulk of the arguments are presented. In Supreme Court cases, each side submits detailed written materials—starting with the petition for certiorari and a brief laying out the legal standards, authorities, and policy reasons supporting their position, followed by briefs in opposition and, if granted, reply briefs. These documents compile statutes, constitutional provisions, precedents, and in-depth reasoning to persuade the justices. Oral argument then serves as a concise, time-limited opportunity to emphasize points and answer justices’ questions, rather than to develop the full argument. A per curiam decision is an unsigned ruling that resolves the case with little or no explanation, so it isn’t where arguments are developed.