P(x) is “x spends more than five hours every weekday in class”
a) ∃xP(x) "There exist a student who spends more than five hours every weekday in class"
b) ∀xP(x) "All students spend more than five hours evert weekday in class"
c) ∃x ¬P(x) "There exist a student who does not spend more than five hours every weekday in class"
d) ∀x ¬P(x) "Every Student don't spend more than 5 hours every weekday in class"