Answer:
Sylvia Mendez helped expand civil rights because As a child, she testified in a court case that helped end school segregation.
Step-by-step explanation:
Of Puerto Rican-Mexican heritage, at the age of eight she testified in the Mendez v. Westminster case in 1946, which was a major landmark in the desegregation process. She was asked to prove that she could speak and understand English language to prove that she did not have to be sent to a segregated "Mexican" school.