Alguien que me ayuda a resolver este problema que me dejaron en el colegio , no entiendo bien. Sean los conjuntos: M={0;4;{0;5};1;5}; W={0;{0;2};5}, T = {0;2;5;{1;5}}. Determine la suma de los elementos numéricos de (M∪W)∩T

Which statement is true about the extreme value of the given quadratic equation? a. the equation has a maximum value with a y-coordinate of -21. b. the equation has a maximum value with a y-coordinate of -27. c. the equation has a minimum value with a y-coordinate of -21. d. the equation has a minimum value with a y-coordinate of -27.