Select the statements that are true based on the following given information. d = {x | x is a whole number} e = {x | x is a perfect square < 36} f = {x | x is an even number between 20 and 30} the expression d ∪ e = e. e ∪ (d ∩ f) is {25}. f ⊂ d (e ∩ f) is the empty set. set e is infinite.