Consider the proposition p(x, y): "Student a has taken class y." over the universe where x is any student at UML and y math class at UML. Express each quantified proposition in English. ? 1. x y p(x, y) ? 2. By Va p(x, y) 3. 3x Vy p(x, y) 4. Vy Va p(x, y) A. Every class has been taken by at least one student. B. Every student has taken every math class. C. Every student has taken a math class. D. There is a student who has taken some math class. E. There is a student who has taken every math class. F. There is a math class that has been taken by every student.