Final answer:
Hernandez v. Texas established equal protection for Mexican American and other racial groups, Mendez v. Westminster allowed immigrants to practice civil engineering in Puerto Rico, and Arizona v. United States struck down a law that allowed law enforcement to investigate a person's immigration status.
Step-by-step explanation:
The case described in Option A is Hernandez v. Texas. It was argued by the first Latinos to appear in front of the Supreme Court and established equal protection for Mexican American and other racial groups.
Option B refers to Mendez v. Westminster. It was argued by Miriam Neveira De Rondon, the first Latino woman to argue in front of the Supreme Court, and it allowed for immigrants to practice civil engineering in Puerto Rico.
Option C is Arizona v. United States. This case was heard by Justice Sotomayor and struck down a law that allowed law enforcement to investigate a person's immigration status.