Sing your ABC's backwards for a buncha points :p

Which of the following lists of ordered pairs is a function?

Which describes which ctso each student should join? eleanor should join nyfea, russell should join fea, giada should join tsa, and joe should join hosa. eleanor should join fbla-pbl, russell should join ffa, giada should join fea, and joe should join fccla. eleanor should join ffa, russell should join deca, giada should join nyfea, and joe should join hosa. eleanor should join fbla-pbl, russell should join deca, giada should join tsa, and joe should join fccla.

What images are featured on the retangular panels along the sides the image above