Just put idk and claim your prize

Answer this question only if you know the 30 points and

Abby is preparing fruit punch for her party. she starts with a bowl filled with liquid that has 1/2 fruit juice and 1/2 sprite, but she decides it's too fruity. so she pours out 1/4 of the liquid, and then fills the bowl up again with sprite. what fraction of the punch is now sprite?

Which letters from the table represent like terms? a and b b and c a and d b and d